Home / 39,756.74-59,633.87-18,691.70

Finding the Fourth Proportional to 39,756.74, 59,633.87 and 18,691.70

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Solution

The fourth proportional to 39,756.74, 59,633.87 and 18,691.70 is: 28,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.74 : 59,633.87 = 18,691.70 : x
  2. Step 2: Convert to fraction form
    39,756.74/59,633.87 = 18,691.70/x
  3. Step 3: Cross multiply
    39,756.74x = 59,633.87 × 18,691.70
  4. Step 4: Simplify right side
    39,756.74x = 1,114,658,016.25
  5. Step 5: Solve for x
    x = 1,114,658,016.25/39,756.74
  6. Step 6: Final answer
    x = 28,036.96

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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.