Home / 20,442.08-30,656.64-8,752.16

Finding the Fourth Proportional to 20,442.08, 30,656.64 and 8,752.16

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Solution

The fourth proportional to 20,442.08, 30,656.64 and 8,752.16 is: 13,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.08 : 30,656.64 = 8,752.16 : x
  2. Step 2: Convert to fraction form
    20,442.08/30,656.64 = 8,752.16/x
  3. Step 3: Cross multiply
    20,442.08x = 30,656.64 × 8,752.16
  4. Step 4: Simplify right side
    20,442.08x = 268,311,818.34
  5. Step 5: Solve for x
    x = 268,311,818.34/20,442.08
  6. Step 6: Final answer
    x = 13,125.47

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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.