Home / 18,837.18-28,261.12-15,360.08

Finding the Fourth Proportional to 18,837.18, 28,261.12 and 15,360.08

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Solution

The fourth proportional to 18,837.18, 28,261.12 and 15,360.08 is: 23,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.18 : 28,261.12 = 15,360.08 : x
  2. Step 2: Convert to fraction form
    18,837.18/28,261.12 = 15,360.08/x
  3. Step 3: Cross multiply
    18,837.18x = 28,261.12 × 15,360.08
  4. Step 4: Simplify right side
    18,837.18x = 434,092,884.38
  5. Step 5: Solve for x
    x = 434,092,884.38/18,837.18
  6. Step 6: Final answer
    x = 23,044.47

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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.