Home / 21,886.41-30,203.22-12,937.14

Finding the Fourth Proportional to 21,886.41, 30,203.22 and 12,937.14

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Solution

The fourth proportional to 21,886.41, 30,203.22 and 12,937.14 is: 17,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.41 : 30,203.22 = 12,937.14 : x
  2. Step 2: Convert to fraction form
    21,886.41/30,203.22 = 12,937.14/x
  3. Step 3: Cross multiply
    21,886.41x = 30,203.22 × 12,937.14
  4. Step 4: Simplify right side
    21,886.41x = 390,743,285.59
  5. Step 5: Solve for x
    x = 390,743,285.59/21,886.41
  6. Step 6: Final answer
    x = 17,853.24

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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.