Home / 18,617.22-28,065.32-17,379.95

Finding the Fourth Proportional to 18,617.22, 28,065.32 and 17,379.95

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Solution

The fourth proportional to 18,617.22, 28,065.32 and 17,379.95 is: 26,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.22 : 28,065.32 = 17,379.95 : x
  2. Step 2: Convert to fraction form
    18,617.22/28,065.32 = 17,379.95/x
  3. Step 3: Cross multiply
    18,617.22x = 28,065.32 × 17,379.95
  4. Step 4: Simplify right side
    18,617.22x = 487,773,631.11
  5. Step 5: Solve for x
    x = 487,773,631.11/18,617.22
  6. Step 6: Final answer
    x = 26,200.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.