Home / 18,240.26-27,217.55-15,878.30

Finding the Fourth Proportional to 18,240.26, 27,217.55 and 15,878.30

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Solution

The fourth proportional to 18,240.26, 27,217.55 and 15,878.30 is: 23,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.26 : 27,217.55 = 15,878.30 : x
  2. Step 2: Convert to fraction form
    18,240.26/27,217.55 = 15,878.30/x
  3. Step 3: Cross multiply
    18,240.26x = 27,217.55 × 15,878.30
  4. Step 4: Simplify right side
    18,240.26x = 432,168,327.77
  5. Step 5: Solve for x
    x = 432,168,327.77/18,240.26
  6. Step 6: Final answer
    x = 23,693.11

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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.