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Finding the Fourth Proportional to 38,100.56, 57,123.15 and 15,920.29

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Solution

The fourth proportional to 38,100.56, 57,123.15 and 15,920.29 is: 23,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,100.56 : 57,123.15 = 15,920.29 : x
  2. Step 2: Convert to fraction form
    38,100.56/57,123.15 = 15,920.29/x
  3. Step 3: Cross multiply
    38,100.56x = 57,123.15 × 15,920.29
  4. Step 4: Simplify right side
    38,100.56x = 909,416,828.10
  5. Step 5: Solve for x
    x = 909,416,828.10/38,100.56
  6. Step 6: Final answer
    x = 23,868.86

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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.