Home / 17,920.50-26,707.13-16,987.38

Finding the Fourth Proportional to 17,920.50, 26,707.13 and 16,987.38

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Solution

The fourth proportional to 17,920.50, 26,707.13 and 16,987.38 is: 25,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.50 : 26,707.13 = 16,987.38 : x
  2. Step 2: Convert to fraction form
    17,920.50/26,707.13 = 16,987.38/x
  3. Step 3: Cross multiply
    17,920.50x = 26,707.13 × 16,987.38
  4. Step 4: Simplify right side
    17,920.50x = 453,684,081.08
  5. Step 5: Solve for x
    x = 453,684,081.08/17,920.50
  6. Step 6: Final answer
    x = 25,316.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.