Home / 18,712.23-28,088.57-16,645.47

Finding the Fourth Proportional to 18,712.23, 28,088.57 and 16,645.47

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Solution

The fourth proportional to 18,712.23, 28,088.57 and 16,645.47 is: 24,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.23 : 28,088.57 = 16,645.47 : x
  2. Step 2: Convert to fraction form
    18,712.23/28,088.57 = 16,645.47/x
  3. Step 3: Cross multiply
    18,712.23x = 28,088.57 × 16,645.47
  4. Step 4: Simplify right side
    18,712.23x = 467,547,366.05
  5. Step 5: Solve for x
    x = 467,547,366.05/18,712.23
  6. Step 6: Final answer
    x = 24,986.19

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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.