Home / 38,700.81-58,043.88-13,739.85

Finding the Fourth Proportional to 38,700.81, 58,043.88 and 13,739.85

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Solution

The fourth proportional to 38,700.81, 58,043.88 and 13,739.85 is: 20,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700.81 : 58,043.88 = 13,739.85 : x
  2. Step 2: Convert to fraction form
    38,700.81/58,043.88 = 13,739.85/x
  3. Step 3: Cross multiply
    38,700.81x = 58,043.88 × 13,739.85
  4. Step 4: Simplify right side
    38,700.81x = 797,514,204.62
  5. Step 5: Solve for x
    x = 797,514,204.62/38,700.81
  6. Step 6: Final answer
    x = 20,607.17

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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.