Home / 20,023.98-30,039.40-8,930.42

Finding the Fourth Proportional to 20,023.98, 30,039.40 and 8,930.42

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Solution

The fourth proportional to 20,023.98, 30,039.40 and 8,930.42 is: 13,397.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.98 : 30,039.40 = 8,930.42 : x
  2. Step 2: Convert to fraction form
    20,023.98/30,039.40 = 8,930.42/x
  3. Step 3: Cross multiply
    20,023.98x = 30,039.40 × 8,930.42
  4. Step 4: Simplify right side
    20,023.98x = 268,264,458.55
  5. Step 5: Solve for x
    x = 268,264,458.55/20,023.98
  6. Step 6: Final answer
    x = 13,397.16

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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.