Home / 47,681.49-71,511.30-21,393.75

Finding the Fourth Proportional to 47,681.49, 71,511.30 and 21,393.75

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Solution

The fourth proportional to 47,681.49, 71,511.30 and 21,393.75 is: 32,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,681.49 : 71,511.30 = 21,393.75 : x
  2. Step 2: Convert to fraction form
    47,681.49/71,511.30 = 21,393.75/x
  3. Step 3: Cross multiply
    47,681.49x = 71,511.30 × 21,393.75
  4. Step 4: Simplify right side
    47,681.49x = 1,529,894,874.38
  5. Step 5: Solve for x
    x = 1,529,894,874.38/47,681.49
  6. Step 6: Final answer
    x = 32,085.72

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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.