Home / 21,302.43-29,397.47-12,355.23

Finding the Fourth Proportional to 21,302.43, 29,397.47 and 12,355.23

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Solution

The fourth proportional to 21,302.43, 29,397.47 and 12,355.23 is: 17,050.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.43 : 29,397.47 = 12,355.23 : x
  2. Step 2: Convert to fraction form
    21,302.43/29,397.47 = 12,355.23/x
  3. Step 3: Cross multiply
    21,302.43x = 29,397.47 × 12,355.23
  4. Step 4: Simplify right side
    21,302.43x = 363,212,551.73
  5. Step 5: Solve for x
    x = 363,212,551.73/21,302.43
  6. Step 6: Final answer
    x = 17,050.29

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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.