Home / 20,412.32-30,618.49-6,373.55

Finding the Fourth Proportional to 20,412.32, 30,618.49 and 6,373.55

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Solution

The fourth proportional to 20,412.32, 30,618.49 and 6,373.55 is: 9,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.32 : 30,618.49 = 6,373.55 : x
  2. Step 2: Convert to fraction form
    20,412.32/30,618.49 = 6,373.55/x
  3. Step 3: Cross multiply
    20,412.32x = 30,618.49 × 6,373.55
  4. Step 4: Simplify right side
    20,412.32x = 195,148,557.59
  5. Step 5: Solve for x
    x = 195,148,557.59/20,412.32
  6. Step 6: Final answer
    x = 9,560.33

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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.