Home / 18,378.08-27,433.80-17,007.52

Finding the Fourth Proportional to 18,378.08, 27,433.80 and 17,007.52

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Solution

The fourth proportional to 18,378.08, 27,433.80 and 17,007.52 is: 25,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.08 : 27,433.80 = 17,007.52 : x
  2. Step 2: Convert to fraction form
    18,378.08/27,433.80 = 17,007.52/x
  3. Step 3: Cross multiply
    18,378.08x = 27,433.80 × 17,007.52
  4. Step 4: Simplify right side
    18,378.08x = 466,580,902.18
  5. Step 5: Solve for x
    x = 466,580,902.18/18,378.08
  6. Step 6: Final answer
    x = 25,387.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.