Home / 28,348.07-39,125.13-16,418.66

Finding the Fourth Proportional to 28,348.07, 39,125.13 and 16,418.66

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Solution

The fourth proportional to 28,348.07, 39,125.13 and 16,418.66 is: 22,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.07 : 39,125.13 = 16,418.66 : x
  2. Step 2: Convert to fraction form
    28,348.07/39,125.13 = 16,418.66/x
  3. Step 3: Cross multiply
    28,348.07x = 39,125.13 × 16,418.66
  4. Step 4: Simplify right side
    28,348.07x = 642,381,929.21
  5. Step 5: Solve for x
    x = 642,381,929.21/28,348.07
  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.