Home / 42,811.68-64,211.16-16,513.12

Finding the Fourth Proportional to 42,811.68, 64,211.16 and 16,513.12

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Solution

The fourth proportional to 42,811.68, 64,211.16 and 16,513.12 is: 24,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,811.68 : 64,211.16 = 16,513.12 : x
  2. Step 2: Convert to fraction form
    42,811.68/64,211.16 = 16,513.12/x
  3. Step 3: Cross multiply
    42,811.68x = 64,211.16 × 16,513.12
  4. Step 4: Simplify right side
    42,811.68x = 1,060,326,590.42
  5. Step 5: Solve for x
    x = 1,060,326,590.42/42,811.68
  6. Step 6: Final answer
    x = 24,767.23

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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.