Home / 15,387.62-21,322.62-14,451.26

Finding the Fourth Proportional to 15,387.62, 21,322.62 and 14,451.26

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Solution

The fourth proportional to 15,387.62, 21,322.62 and 14,451.26 is: 20,025.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,387.62 : 21,322.62 = 14,451.26 : x
  2. Step 2: Convert to fraction form
    15,387.62/21,322.62 = 14,451.26/x
  3. Step 3: Cross multiply
    15,387.62x = 21,322.62 × 14,451.26
  4. Step 4: Simplify right side
    15,387.62x = 308,138,618.89
  5. Step 5: Solve for x
    x = 308,138,618.89/15,387.62
  6. Step 6: Final answer
    x = 20,025.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.