Home / 26,164.80-39,189.60-18,331.20

Finding the Fourth Proportional to 26,164.80, 39,189.60 and 18,331.20

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Solution

The fourth proportional to 26,164.80, 39,189.60 and 18,331.20 is: 27,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,164.80 : 39,189.60 = 18,331.20 : x
  2. Step 2: Convert to fraction form
    26,164.80/39,189.60 = 18,331.20/x
  3. Step 3: Cross multiply
    26,164.80x = 39,189.60 × 18,331.20
  4. Step 4: Simplify right side
    26,164.80x = 718,392,395.52
  5. Step 5: Solve for x
    x = 718,392,395.52/26,164.80
  6. Step 6: Final answer
    x = 27,456.45

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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.