Home / 28,399.96-39,191.98-16,470.23

Finding the Fourth Proportional to 28,399.96, 39,191.98 and 16,470.23

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Solution

The fourth proportional to 28,399.96, 39,191.98 and 16,470.23 is: 22,728.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.96 : 39,191.98 = 16,470.23 : x
  2. Step 2: Convert to fraction form
    28,399.96/39,191.98 = 16,470.23/x
  3. Step 3: Cross multiply
    28,399.96x = 39,191.98 × 16,470.23
  4. Step 4: Simplify right side
    28,399.96x = 645,500,687.62
  5. Step 5: Solve for x
    x = 645,500,687.62/28,399.96
  6. Step 6: Final answer
    x = 22,728.93

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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.