Home / 38,208.68-52,727.12-21,211.92

Finding the Fourth Proportional to 38,208.68, 52,727.12 and 21,211.92

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Solution

The fourth proportional to 38,208.68, 52,727.12 and 21,211.92 is: 29,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.68 : 52,727.12 = 21,211.92 : x
  2. Step 2: Convert to fraction form
    38,208.68/52,727.12 = 21,211.92/x
  3. Step 3: Cross multiply
    38,208.68x = 52,727.12 × 21,211.92
  4. Step 4: Simplify right side
    38,208.68x = 1,118,443,451.27
  5. Step 5: Solve for x
    x = 1,118,443,451.27/38,208.68
  6. Step 6: Final answer
    x = 29,271.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.