Home / 28,931.74-43,391.50-8,150.38

Finding the Fourth Proportional to 28,931.74, 43,391.50 and 8,150.38

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Solution

The fourth proportional to 28,931.74, 43,391.50 and 8,150.38 is: 12,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.74 : 43,391.50 = 8,150.38 : x
  2. Step 2: Convert to fraction form
    28,931.74/43,391.50 = 8,150.38/x
  3. Step 3: Cross multiply
    28,931.74x = 43,391.50 × 8,150.38
  4. Step 4: Simplify right side
    28,931.74x = 353,657,213.77
  5. Step 5: Solve for x
    x = 353,657,213.77/28,931.74
  6. Step 6: Final answer
    x = 12,223.85

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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.