Home / 38,666.10-57,965.40-14,989.80

Finding the Fourth Proportional to 38,666.10, 57,965.40 and 14,989.80

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Solution

The fourth proportional to 38,666.10, 57,965.40 and 14,989.80 is: 22,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.10 : 57,965.40 = 14,989.80 : x
  2. Step 2: Convert to fraction form
    38,666.10/57,965.40 = 14,989.80/x
  3. Step 3: Cross multiply
    38,666.10x = 57,965.40 × 14,989.80
  4. Step 4: Simplify right side
    38,666.10x = 868,889,752.92
  5. Step 5: Solve for x
    x = 868,889,752.92/38,666.10
  6. Step 6: Final answer
    x = 22,471.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.