Home / 42,832.20-64,215.36-21,754.92

Finding the Fourth Proportional to 42,832.20, 64,215.36 and 21,754.92

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Solution

The fourth proportional to 42,832.20, 64,215.36 and 21,754.92 is: 32,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,832.20 : 64,215.36 = 21,754.92 : x
  2. Step 2: Convert to fraction form
    42,832.20/64,215.36 = 21,754.92/x
  3. Step 3: Cross multiply
    42,832.20x = 64,215.36 × 21,754.92
  4. Step 4: Simplify right side
    42,832.20x = 1,397,000,019.57
  5. Step 5: Solve for x
    x = 1,397,000,019.57/42,832.20
  6. Step 6: Final answer
    x = 32,615.65

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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.