Home / 28,350.72-39,125.76-16,418.16

Finding the Fourth Proportional to 28,350.72, 39,125.76 and 16,418.16

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Solution

The fourth proportional to 28,350.72, 39,125.76 and 16,418.16 is: 22,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.72 : 39,125.76 = 16,418.16 : x
  2. Step 2: Convert to fraction form
    28,350.72/39,125.76 = 16,418.16/x
  3. Step 3: Cross multiply
    28,350.72x = 39,125.76 × 16,418.16
  4. Step 4: Simplify right side
    28,350.72x = 642,372,987.80
  5. Step 5: Solve for x
    x = 642,372,987.80/28,350.72
  6. Step 6: Final answer
    x = 22,658.08

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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.