Home / 31,825.90-47,754.33-12,849.76

Finding the Fourth Proportional to 31,825.90, 47,754.33 and 12,849.76

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Solution

The fourth proportional to 31,825.90, 47,754.33 and 12,849.76 is: 19,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.90 : 47,754.33 = 12,849.76 : x
  2. Step 2: Convert to fraction form
    31,825.90/47,754.33 = 12,849.76/x
  3. Step 3: Cross multiply
    31,825.90x = 47,754.33 × 12,849.76
  4. Step 4: Simplify right side
    31,825.90x = 613,631,679.46
  5. Step 5: Solve for x
    x = 613,631,679.46/31,825.90
  6. Step 6: Final answer
    x = 19,280.89

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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.