Home / 38,002.80-56,939.40-31,393.20

Finding the Fourth Proportional to 38,002.80, 56,939.40 and 31,393.20

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Solution

The fourth proportional to 38,002.80, 56,939.40 and 31,393.20 is: 47,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,002.80 : 56,939.40 = 31,393.20 : x
  2. Step 2: Convert to fraction form
    38,002.80/56,939.40 = 31,393.20/x
  3. Step 3: Cross multiply
    38,002.80x = 56,939.40 × 31,393.20
  4. Step 4: Simplify right side
    38,002.80x = 1,787,509,972.08
  5. Step 5: Solve for x
    x = 1,787,509,972.08/38,002.80
  6. Step 6: Final answer
    x = 47,036.27

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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.