Home / 28,391.40-39,177.27-16,458.48

Finding the Fourth Proportional to 28,391.40, 39,177.27 and 16,458.48

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Solution

The fourth proportional to 28,391.40, 39,177.27 and 16,458.48 is: 22,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.40 : 39,177.27 = 16,458.48 : x
  2. Step 2: Convert to fraction form
    28,391.40/39,177.27 = 16,458.48/x
  3. Step 3: Cross multiply
    28,391.40x = 39,177.27 × 16,458.48
  4. Step 4: Simplify right side
    28,391.40x = 644,798,314.75
  5. Step 5: Solve for x
    x = 644,798,314.75/28,391.40
  6. Step 6: Final answer
    x = 22,711.04

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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.