Home / 22,379.40-30,885.21-14,812.56

Finding the Fourth Proportional to 22,379.40, 30,885.21 and 14,812.56

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Solution

The fourth proportional to 22,379.40, 30,885.21 and 14,812.56 is: 20,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.40 : 30,885.21 = 14,812.56 : x
  2. Step 2: Convert to fraction form
    22,379.40/30,885.21 = 14,812.56/x
  3. Step 3: Cross multiply
    22,379.40x = 30,885.21 × 14,812.56
  4. Step 4: Simplify right side
    22,379.40x = 457,489,026.24
  5. Step 5: Solve for x
    x = 457,489,026.24/22,379.40
  6. Step 6: Final answer
    x = 20,442.42

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Half scale
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Double scale
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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.