Home / 47,877-71,815.45-21,550.98

Finding the Fourth Proportional to 47,877, 71,815.45 and 21,550.98

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Solution

The fourth proportional to 47,877, 71,815.45 and 21,550.98 is: 32,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,877 : 71,815.45 = 21,550.98 : x
  2. Step 2: Convert to fraction form
    47,877/71,815.45 = 21,550.98/x
  3. Step 3: Cross multiply
    47,877x = 71,815.45 × 21,550.98
  4. Step 4: Simplify right side
    47,877x = 1,547,693,272.76
  5. Step 5: Solve for x
    x = 1,547,693,272.76/47,877
  6. Step 6: Final answer
    x = 32,326.45

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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.