Home / 28,348.06-39,125.12-16,418.65

Finding the Fourth Proportional to 28,348.06, 39,125.12 and 16,418.65

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Solution

The fourth proportional to 28,348.06, 39,125.12 and 16,418.65 is: 22,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.06 : 39,125.12 = 16,418.65 : x
  2. Step 2: Convert to fraction form
    28,348.06/39,125.12 = 16,418.65/x
  3. Step 3: Cross multiply
    28,348.06x = 39,125.12 × 16,418.65
  4. Step 4: Simplify right side
    28,348.06x = 642,381,651.49
  5. Step 5: Solve for x
    x = 642,381,651.49/28,348.06
  6. Step 6: Final answer
    x = 22,660.52

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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.