Home / 31,501.31-47,252.88-8,127.75

Finding the Fourth Proportional to 31,501.31, 47,252.88 and 8,127.75

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Solution

The fourth proportional to 31,501.31, 47,252.88 and 8,127.75 is: 12,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.31 : 47,252.88 = 8,127.75 : x
  2. Step 2: Convert to fraction form
    31,501.31/47,252.88 = 8,127.75/x
  3. Step 3: Cross multiply
    31,501.31x = 47,252.88 × 8,127.75
  4. Step 4: Simplify right side
    31,501.31x = 384,059,595.42
  5. Step 5: Solve for x
    x = 384,059,595.42/31,501.31
  6. Step 6: Final answer
    x = 12,191.86

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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.