Home / 28,962.66-39,967.38-16,387.68

Finding the Fourth Proportional to 28,962.66, 39,967.38 and 16,387.68

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Solution

The fourth proportional to 28,962.66, 39,967.38 and 16,387.68 is: 22,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.66 : 39,967.38 = 16,387.68 : x
  2. Step 2: Convert to fraction form
    28,962.66/39,967.38 = 16,387.68/x
  3. Step 3: Cross multiply
    28,962.66x = 39,967.38 × 16,387.68
  4. Step 4: Simplify right side
    28,962.66x = 654,972,633.88
  5. Step 5: Solve for x
    x = 654,972,633.88/28,962.66
  6. Step 6: Final answer
    x = 22,614.38

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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.