Home / 22,031.41-30,419.15-13,544.92

Finding the Fourth Proportional to 22,031.41, 30,419.15 and 13,544.92

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Solution

The fourth proportional to 22,031.41, 30,419.15 and 13,544.92 is: 18,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.41 : 30,419.15 = 13,544.92 : x
  2. Step 2: Convert to fraction form
    22,031.41/30,419.15 = 13,544.92/x
  3. Step 3: Cross multiply
    22,031.41x = 30,419.15 × 13,544.92
  4. Step 4: Simplify right side
    22,031.41x = 412,024,809.45
  5. Step 5: Solve for x
    x = 412,024,809.45/22,031.41
  6. Step 6: Final answer
    x = 18,701.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.