Home / 20,323.17-30,488.05-6,279.92

Finding the Fourth Proportional to 20,323.17, 30,488.05 and 6,279.92

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Solution

The fourth proportional to 20,323.17, 30,488.05 and 6,279.92 is: 9,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.17 : 30,488.05 = 6,279.92 : x
  2. Step 2: Convert to fraction form
    20,323.17/30,488.05 = 6,279.92/x
  3. Step 3: Cross multiply
    20,323.17x = 30,488.05 × 6,279.92
  4. Step 4: Simplify right side
    20,323.17x = 191,462,484.70
  5. Step 5: Solve for x
    x = 191,462,484.70/20,323.17
  6. Step 6: Final answer
    x = 9,420.90

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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.