Home / 42,862.69-64,251.65-20,333.87

Finding the Fourth Proportional to 42,862.69, 64,251.65 and 20,333.87

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Solution

The fourth proportional to 42,862.69, 64,251.65 and 20,333.87 is: 30,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,862.69 : 64,251.65 = 20,333.87 : x
  2. Step 2: Convert to fraction form
    42,862.69/64,251.65 = 20,333.87/x
  3. Step 3: Cross multiply
    42,862.69x = 64,251.65 × 20,333.87
  4. Step 4: Simplify right side
    42,862.69x = 1,306,484,698.39
  5. Step 5: Solve for x
    x = 1,306,484,698.39/42,862.69
  6. Step 6: Final answer
    x = 30,480.70

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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.