Home / 38,402.28-57,510.54-31,779.72

Finding the Fourth Proportional to 38,402.28, 57,510.54 and 31,779.72

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Solution

The fourth proportional to 38,402.28, 57,510.54 and 31,779.72 is: 47,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.28 : 57,510.54 = 31,779.72 : x
  2. Step 2: Convert to fraction form
    38,402.28/57,510.54 = 31,779.72/x
  3. Step 3: Cross multiply
    38,402.28x = 57,510.54 × 31,779.72
  4. Step 4: Simplify right side
    38,402.28x = 1,827,668,858.25
  5. Step 5: Solve for x
    x = 1,827,668,858.25/38,402.28
  6. Step 6: Final answer
    x = 47,592.72

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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.