Home / 39,327.18-54,271.51-21,422.18

Finding the Fourth Proportional to 39,327.18, 54,271.51 and 21,422.18

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Solution

The fourth proportional to 39,327.18, 54,271.51 and 21,422.18 is: 29,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.18 : 54,271.51 = 21,422.18 : x
  2. Step 2: Convert to fraction form
    39,327.18/54,271.51 = 21,422.18/x
  3. Step 3: Cross multiply
    39,327.18x = 54,271.51 × 21,422.18
  4. Step 4: Simplify right side
    39,327.18x = 1,162,614,184.41
  5. Step 5: Solve for x
    x = 1,162,614,184.41/39,327.18
  6. Step 6: Final answer
    x = 29,562.61

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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.