Home / 31,850.40-47,776.02-12,130.04

Finding the Fourth Proportional to 31,850.40, 47,776.02 and 12,130.04

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Solution

The fourth proportional to 31,850.40, 47,776.02 and 12,130.04 is: 18,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,850.40 : 47,776.02 = 12,130.04 : x
  2. Step 2: Convert to fraction form
    31,850.40/47,776.02 = 12,130.04/x
  3. Step 3: Cross multiply
    31,850.40x = 47,776.02 × 12,130.04
  4. Step 4: Simplify right side
    31,850.40x = 579,524,794.76
  5. Step 5: Solve for x
    x = 579,524,794.76/31,850.40
  6. Step 6: Final answer
    x = 18,195.21

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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.