Home / 23,428.55-32,332.16-13,356.80

Finding the Fourth Proportional to 23,428.55, 32,332.16 and 13,356.80

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Solution

The fourth proportional to 23,428.55, 32,332.16 and 13,356.80 is: 18,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.55 : 32,332.16 = 13,356.80 : x
  2. Step 2: Convert to fraction form
    23,428.55/32,332.16 = 13,356.80/x
  3. Step 3: Cross multiply
    23,428.55x = 32,332.16 × 13,356.80
  4. Step 4: Simplify right side
    23,428.55x = 431,853,966.24
  5. Step 5: Solve for x
    x = 431,853,966.24/23,428.55
  6. Step 6: Final answer
    x = 18,432.81

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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.