Home / 28,418.87-39,210.13-16,479.83

Finding the Fourth Proportional to 28,418.87, 39,210.13 and 16,479.83

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Solution

The fourth proportional to 28,418.87, 39,210.13 and 16,479.83 is: 22,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.87 : 39,210.13 = 16,479.83 : x
  2. Step 2: Convert to fraction form
    28,418.87/39,210.13 = 16,479.83/x
  3. Step 3: Cross multiply
    28,418.87x = 39,210.13 × 16,479.83
  4. Step 4: Simplify right side
    28,418.87x = 646,176,276.68
  5. Step 5: Solve for x
    x = 646,176,276.68/28,418.87
  6. Step 6: Final answer
    x = 22,737.58

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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.