Home / 29,386.40-40,553.28-15,957.68

Finding the Fourth Proportional to 29,386.40, 40,553.28 and 15,957.68

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Solution

The fourth proportional to 29,386.40, 40,553.28 and 15,957.68 is: 22,021.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,386.40 : 40,553.28 = 15,957.68 : x
  2. Step 2: Convert to fraction form
    29,386.40/40,553.28 = 15,957.68/x
  3. Step 3: Cross multiply
    29,386.40x = 40,553.28 × 15,957.68
  4. Step 4: Simplify right side
    29,386.40x = 647,136,265.19
  5. Step 5: Solve for x
    x = 647,136,265.19/29,386.40
  6. Step 6: Final answer
    x = 22,021.62

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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.