Home / 20,424.93-30,633.74-5,432.13

Finding the Fourth Proportional to 20,424.93, 30,633.74 and 5,432.13

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Solution

The fourth proportional to 20,424.93, 30,633.74 and 5,432.13 is: 8,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.93 : 30,633.74 = 5,432.13 : x
  2. Step 2: Convert to fraction form
    20,424.93/30,633.74 = 5,432.13/x
  3. Step 3: Cross multiply
    20,424.93x = 30,633.74 × 5,432.13
  4. Step 4: Simplify right side
    20,424.93x = 166,406,481.83
  5. Step 5: Solve for x
    x = 166,406,481.83/20,424.93
  6. Step 6: Final answer
    x = 8,147.23

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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.