Home / 42,330.77-63,499.61-21,259.97

Finding the Fourth Proportional to 42,330.77, 63,499.61 and 21,259.97

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Solution

The fourth proportional to 42,330.77, 63,499.61 and 21,259.97 is: 31,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,330.77 : 63,499.61 = 21,259.97 : x
  2. Step 2: Convert to fraction form
    42,330.77/63,499.61 = 21,259.97/x
  3. Step 3: Cross multiply
    42,330.77x = 63,499.61 × 21,259.97
  4. Step 4: Simplify right side
    42,330.77x = 1,349,999,803.61
  5. Step 5: Solve for x
    x = 1,349,999,803.61/42,330.77
  6. Step 6: Final answer
    x = 31,891.69

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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.