Home / 28,393.28-42,589.92-10,868.48

Finding the Fourth Proportional to 28,393.28, 42,589.92 and 10,868.48

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Solution

The fourth proportional to 28,393.28, 42,589.92 and 10,868.48 is: 16,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.28 : 42,589.92 = 10,868.48 : x
  2. Step 2: Convert to fraction form
    28,393.28/42,589.92 = 10,868.48/x
  3. Step 3: Cross multiply
    28,393.28x = 42,589.92 × 10,868.48
  4. Step 4: Simplify right side
    28,393.28x = 462,887,693.72
  5. Step 5: Solve for x
    x = 462,887,693.72/28,393.28
  6. Step 6: Final answer
    x = 16,302.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.