Home / 20,248.52-30,376.88-8,561.72

Finding the Fourth Proportional to 20,248.52, 30,376.88 and 8,561.72

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Solution

The fourth proportional to 20,248.52, 30,376.88 and 8,561.72 is: 12,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.52 : 30,376.88 = 8,561.72 : x
  2. Step 2: Convert to fraction form
    20,248.52/30,376.88 = 8,561.72/x
  3. Step 3: Cross multiply
    20,248.52x = 30,376.88 × 8,561.72
  4. Step 4: Simplify right side
    20,248.52x = 260,078,341.03
  5. Step 5: Solve for x
    x = 260,078,341.03/20,248.52
  6. Step 6: Final answer
    x = 12,844.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.