Home / 39,828.30-59,742.45-38,121.90

Finding the Fourth Proportional to 39,828.30, 59,742.45 and 38,121.90

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Solution

The fourth proportional to 39,828.30, 59,742.45 and 38,121.90 is: 57,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.30 : 59,742.45 = 38,121.90 : x
  2. Step 2: Convert to fraction form
    39,828.30/59,742.45 = 38,121.90/x
  3. Step 3: Cross multiply
    39,828.30x = 59,742.45 × 38,121.90
  4. Step 4: Simplify right side
    39,828.30x = 2,277,495,704.66
  5. Step 5: Solve for x
    x = 2,277,495,704.66/39,828.30
  6. Step 6: Final answer
    x = 57,182.85

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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.