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Finding the Fourth Proportional to 42,655.84, 63,995.10 and 14,575.84

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Solution

The fourth proportional to 42,655.84, 63,995.10 and 14,575.84 is: 21,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,655.84 : 63,995.10 = 14,575.84 : x
  2. Step 2: Convert to fraction form
    42,655.84/63,995.10 = 14,575.84/x
  3. Step 3: Cross multiply
    42,655.84x = 63,995.10 × 14,575.84
  4. Step 4: Simplify right side
    42,655.84x = 932,782,338.38
  5. Step 5: Solve for x
    x = 932,782,338.38/42,655.84
  6. Step 6: Final answer
    x = 21,867.63

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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.