Home / 20,624.40-28,389.42-17,967.20

Finding the Fourth Proportional to 20,624.40, 28,389.42 and 17,967.20

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Solution

The fourth proportional to 20,624.40, 28,389.42 and 17,967.20 is: 24,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.40 : 28,389.42 = 17,967.20 : x
  2. Step 2: Convert to fraction form
    20,624.40/28,389.42 = 17,967.20/x
  3. Step 3: Cross multiply
    20,624.40x = 28,389.42 × 17,967.20
  4. Step 4: Simplify right side
    20,624.40x = 510,078,245.08
  5. Step 5: Solve for x
    x = 510,078,245.08/20,624.40
  6. Step 6: Final answer
    x = 24,731.79

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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.