Home / 38,139.10-57,192.45-18,423.70

Finding the Fourth Proportional to 38,139.10, 57,192.45 and 18,423.70

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Solution

The fourth proportional to 38,139.10, 57,192.45 and 18,423.70 is: 27,627.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.10 : 57,192.45 = 18,423.70 : x
  2. Step 2: Convert to fraction form
    38,139.10/57,192.45 = 18,423.70/x
  3. Step 3: Cross multiply
    38,139.10x = 57,192.45 × 18,423.70
  4. Step 4: Simplify right side
    38,139.10x = 1,053,696,541.07
  5. Step 5: Solve for x
    x = 1,053,696,541.07/38,139.10
  6. Step 6: Final answer
    x = 27,627.72

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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.