Home / 30,543.20-42,169.92-23,456.96

Finding the Fourth Proportional to 30,543.20, 42,169.92 and 23,456.96

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Solution

The fourth proportional to 30,543.20, 42,169.92 and 23,456.96 is: 32,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.20 : 42,169.92 = 23,456.96 : x
  2. Step 2: Convert to fraction form
    30,543.20/42,169.92 = 23,456.96/x
  3. Step 3: Cross multiply
    30,543.20x = 42,169.92 × 23,456.96
  4. Step 4: Simplify right side
    30,543.20x = 989,178,126.64
  5. Step 5: Solve for x
    x = 989,178,126.64/30,543.20
  6. Step 6: Final answer
    x = 32,386.20

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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.