Home / 31,960.99-47,948.40-12,239.55

Finding the Fourth Proportional to 31,960.99, 47,948.40 and 12,239.55

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Solution

The fourth proportional to 31,960.99, 47,948.40 and 12,239.55 is: 18,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,960.99 : 47,948.40 = 12,239.55 : x
  2. Step 2: Convert to fraction form
    31,960.99/47,948.40 = 12,239.55/x
  3. Step 3: Cross multiply
    31,960.99x = 47,948.40 × 12,239.55
  4. Step 4: Simplify right side
    31,960.99x = 586,866,645.38
  5. Step 5: Solve for x
    x = 586,866,645.38/31,960.99
  6. Step 6: Final answer
    x = 18,361.97

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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.