Home / 23,158.89-31,960.53-13,087.76

Finding the Fourth Proportional to 23,158.89, 31,960.53 and 13,087.76

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Solution

The fourth proportional to 23,158.89, 31,960.53 and 13,087.76 is: 18,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,158.89 : 31,960.53 = 13,087.76 : x
  2. Step 2: Convert to fraction form
    23,158.89/31,960.53 = 13,087.76/x
  3. Step 3: Cross multiply
    23,158.89x = 31,960.53 × 13,087.76
  4. Step 4: Simplify right side
    23,158.89x = 418,291,586.31
  5. Step 5: Solve for x
    x = 418,291,586.31/23,158.89
  6. Step 6: Final answer
    x = 18,061.81

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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.