Home / 20,470.92-30,663.18-20,237.64

Finding the Fourth Proportional to 20,470.92, 30,663.18 and 20,237.64

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Solution

The fourth proportional to 20,470.92, 30,663.18 and 20,237.64 is: 30,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.92 : 30,663.18 = 20,237.64 : x
  2. Step 2: Convert to fraction form
    20,470.92/30,663.18 = 20,237.64/x
  3. Step 3: Cross multiply
    20,470.92x = 30,663.18 × 20,237.64
  4. Step 4: Simplify right side
    20,470.92x = 620,550,398.10
  5. Step 5: Solve for x
    x = 620,550,398.10/20,470.92
  6. Step 6: Final answer
    x = 30,313.75

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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.