Home / 23,500.90-32,431.29-12,890.57

Finding the Fourth Proportional to 23,500.90, 32,431.29 and 12,890.57

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Solution

The fourth proportional to 23,500.90, 32,431.29 and 12,890.57 is: 17,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,500.90 : 32,431.29 = 12,890.57 : x
  2. Step 2: Convert to fraction form
    23,500.90/32,431.29 = 12,890.57/x
  3. Step 3: Cross multiply
    23,500.90x = 32,431.29 × 12,890.57
  4. Step 4: Simplify right side
    23,500.90x = 418,057,813.94
  5. Step 5: Solve for x
    x = 418,057,813.94/23,500.90
  6. Step 6: Final answer
    x = 17,789.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.