Home / 18,711.54-28,061.73-15,416.46

Finding the Fourth Proportional to 18,711.54, 28,061.73 and 15,416.46

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Solution

The fourth proportional to 18,711.54, 28,061.73 and 15,416.46 is: 23,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.54 : 28,061.73 = 15,416.46 : x
  2. Step 2: Convert to fraction form
    18,711.54/28,061.73 = 15,416.46/x
  3. Step 3: Cross multiply
    18,711.54x = 28,061.73 × 15,416.46
  4. Step 4: Simplify right side
    18,711.54x = 432,612,538.08
  5. Step 5: Solve for x
    x = 432,612,538.08/18,711.54
  6. Step 6: Final answer
    x = 23,120.09

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1.5x scale

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.