Home / 26,187.68-36,139.56-15,009.68

Finding the Fourth Proportional to 26,187.68, 36,139.56 and 15,009.68

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Solution

The fourth proportional to 26,187.68, 36,139.56 and 15,009.68 is: 20,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.68 : 36,139.56 = 15,009.68 : x
  2. Step 2: Convert to fraction form
    26,187.68/36,139.56 = 15,009.68/x
  3. Step 3: Cross multiply
    26,187.68x = 36,139.56 × 15,009.68
  4. Step 4: Simplify right side
    26,187.68x = 542,443,230.94
  5. Step 5: Solve for x
    x = 542,443,230.94/26,187.68
  6. Step 6: Final answer
    x = 20,713.68

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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.