Home / 41,389.28-57,184.12-28,869.92

Finding the Fourth Proportional to 41,389.28, 57,184.12 and 28,869.92

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Solution

The fourth proportional to 41,389.28, 57,184.12 and 28,869.92 is: 39,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,389.28 : 57,184.12 = 28,869.92 : x
  2. Step 2: Convert to fraction form
    41,389.28/57,184.12 = 28,869.92/x
  3. Step 3: Cross multiply
    41,389.28x = 57,184.12 × 28,869.92
  4. Step 4: Simplify right side
    41,389.28x = 1,650,900,969.67
  5. Step 5: Solve for x
    x = 1,650,900,969.67/41,389.28
  6. Step 6: Final answer
    x = 39,887.16

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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.