Home / 23,140.90-31,937.88-13,580.38

Finding the Fourth Proportional to 23,140.90, 31,937.88 and 13,580.38

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Solution

The fourth proportional to 23,140.90, 31,937.88 and 13,580.38 is: 18,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.90 : 31,937.88 = 13,580.38 : x
  2. Step 2: Convert to fraction form
    23,140.90/31,937.88 = 13,580.38/x
  3. Step 3: Cross multiply
    23,140.90x = 31,937.88 × 13,580.38
  4. Step 4: Simplify right side
    23,140.90x = 433,728,546.79
  5. Step 5: Solve for x
    x = 433,728,546.79/23,140.90
  6. Step 6: Final answer
    x = 18,742.94

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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.