Home / 28,462.32-39,278.56-16,521.32

Finding the Fourth Proportional to 28,462.32, 39,278.56 and 16,521.32

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Solution

The fourth proportional to 28,462.32, 39,278.56 and 16,521.32 is: 22,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.32 : 39,278.56 = 16,521.32 : x
  2. Step 2: Convert to fraction form
    28,462.32/39,278.56 = 16,521.32/x
  3. Step 3: Cross multiply
    28,462.32x = 39,278.56 × 16,521.32
  4. Step 4: Simplify right side
    28,462.32x = 648,933,658.90
  5. Step 5: Solve for x
    x = 648,933,658.90/28,462.32
  6. Step 6: Final answer
    x = 22,799.75

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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.