Home / 42,834.60-64,273.86-20,666.88

Finding the Fourth Proportional to 42,834.60, 64,273.86 and 20,666.88

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Solution

The fourth proportional to 42,834.60, 64,273.86 and 20,666.88 is: 31,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,834.60 : 64,273.86 = 20,666.88 : x
  2. Step 2: Convert to fraction form
    42,834.60/64,273.86 = 20,666.88/x
  3. Step 3: Cross multiply
    42,834.60x = 64,273.86 × 20,666.88
  4. Step 4: Simplify right side
    42,834.60x = 1,328,340,151.76
  5. Step 5: Solve for x
    x = 1,328,340,151.76/42,834.60
  6. Step 6: Final answer
    x = 31,010.92

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1.5x scale

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.