Home / 28,189.74-38,892.19-16,081.53

Finding the Fourth Proportional to 28,189.74, 38,892.19 and 16,081.53

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Solution

The fourth proportional to 28,189.74, 38,892.19 and 16,081.53 is: 22,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.74 : 38,892.19 = 16,081.53 : x
  2. Step 2: Convert to fraction form
    28,189.74/38,892.19 = 16,081.53/x
  3. Step 3: Cross multiply
    28,189.74x = 38,892.19 × 16,081.53
  4. Step 4: Simplify right side
    28,189.74x = 625,445,920.25
  5. Step 5: Solve for x
    x = 625,445,920.25/28,189.74
  6. Step 6: Final answer
    x = 22,187.01

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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.