Home / 18,712.29-28,088.66-16,645.53

Finding the Fourth Proportional to 18,712.29, 28,088.66 and 16,645.53

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Solution

The fourth proportional to 18,712.29, 28,088.66 and 16,645.53 is: 24,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.29 : 28,088.66 = 16,645.53 : x
  2. Step 2: Convert to fraction form
    18,712.29/28,088.66 = 16,645.53/x
  3. Step 3: Cross multiply
    18,712.29x = 28,088.66 × 16,645.53
  4. Step 4: Simplify right side
    18,712.29x = 467,550,702.91
  5. Step 5: Solve for x
    x = 467,550,702.91/18,712.29
  6. Step 6: Final answer
    x = 24,986.29

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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.