Home / 31,510.35-47,231.13-15,510.89

Finding the Fourth Proportional to 31,510.35, 47,231.13 and 15,510.89

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Solution

The fourth proportional to 31,510.35, 47,231.13 and 15,510.89 is: 23,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,510.35 : 47,231.13 = 15,510.89 : x
  2. Step 2: Convert to fraction form
    31,510.35/47,231.13 = 15,510.89/x
  3. Step 3: Cross multiply
    31,510.35x = 47,231.13 × 15,510.89
  4. Step 4: Simplify right side
    31,510.35x = 732,597,005.53
  5. Step 5: Solve for x
    x = 732,597,005.53/31,510.35
  6. Step 6: Final answer
    x = 23,249.41

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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.