Home / 20,006.30-30,008.23-8,319.62

Finding the Fourth Proportional to 20,006.30, 30,008.23 and 8,319.62

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Solution

The fourth proportional to 20,006.30, 30,008.23 and 8,319.62 is: 12,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.30 : 30,008.23 = 8,319.62 : x
  2. Step 2: Convert to fraction form
    20,006.30/30,008.23 = 8,319.62/x
  3. Step 3: Cross multiply
    20,006.30x = 30,008.23 × 8,319.62
  4. Step 4: Simplify right side
    20,006.30x = 249,657,070.47
  5. Step 5: Solve for x
    x = 249,657,070.47/20,006.30
  6. Step 6: Final answer
    x = 12,478.92

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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.