Home / 18,346.20-25,306.29-15,272.21

Finding the Fourth Proportional to 18,346.20, 25,306.29 and 15,272.21

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Solution

The fourth proportional to 18,346.20, 25,306.29 and 15,272.21 is: 21,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.20 : 25,306.29 = 15,272.21 : x
  2. Step 2: Convert to fraction form
    18,346.20/25,306.29 = 15,272.21/x
  3. Step 3: Cross multiply
    18,346.20x = 25,306.29 × 15,272.21
  4. Step 4: Simplify right side
    18,346.20x = 386,483,038.47
  5. Step 5: Solve for x
    x = 386,483,038.47/18,346.20
  6. Step 6: Final answer
    x = 21,066.11

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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.