Home / 22,591.23-31,176.15-12,519.79

Finding the Fourth Proportional to 22,591.23, 31,176.15 and 12,519.79

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Solution

The fourth proportional to 22,591.23, 31,176.15 and 12,519.79 is: 17,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,591.23 : 31,176.15 = 12,519.79 : x
  2. Step 2: Convert to fraction form
    22,591.23/31,176.15 = 12,519.79/x
  3. Step 3: Cross multiply
    22,591.23x = 31,176.15 × 12,519.79
  4. Step 4: Simplify right side
    22,591.23x = 390,318,851.01
  5. Step 5: Solve for x
    x = 390,318,851.01/22,591.23
  6. Step 6: Final answer
    x = 17,277.45

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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.