Home / 28,411.14-39,209.13-15,664.26

Finding the Fourth Proportional to 28,411.14, 39,209.13 and 15,664.26

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Solution

The fourth proportional to 28,411.14, 39,209.13 and 15,664.26 is: 21,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.14 : 39,209.13 = 15,664.26 : x
  2. Step 2: Convert to fraction form
    28,411.14/39,209.13 = 15,664.26/x
  3. Step 3: Cross multiply
    28,411.14x = 39,209.13 × 15,664.26
  4. Step 4: Simplify right side
    28,411.14x = 614,182,006.69
  5. Step 5: Solve for x
    x = 614,182,006.69/28,411.14
  6. Step 6: Final answer
    x = 21,617.65

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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.