Home / 23,155.78-31,956.23-13,084.65

Finding the Fourth Proportional to 23,155.78, 31,956.23 and 13,084.65

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Solution

The fourth proportional to 23,155.78, 31,956.23 and 13,084.65 is: 18,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,155.78 : 31,956.23 = 13,084.65 : x
  2. Step 2: Convert to fraction form
    23,155.78/31,956.23 = 13,084.65/x
  3. Step 3: Cross multiply
    23,155.78x = 31,956.23 × 13,084.65
  4. Step 4: Simplify right side
    23,155.78x = 418,136,084.87
  5. Step 5: Solve for x
    x = 418,136,084.87/23,155.78
  6. Step 6: Final answer
    x = 18,057.53

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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.