Home / 26,754.55-36,918.11-15,427.76

Finding the Fourth Proportional to 26,754.55, 36,918.11 and 15,427.76

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Solution

The fourth proportional to 26,754.55, 36,918.11 and 15,427.76 is: 21,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,754.55 : 36,918.11 = 15,427.76 : x
  2. Step 2: Convert to fraction form
    26,754.55/36,918.11 = 15,427.76/x
  3. Step 3: Cross multiply
    26,754.55x = 36,918.11 × 15,427.76
  4. Step 4: Simplify right side
    26,754.55x = 569,563,740.73
  5. Step 5: Solve for x
    x = 569,563,740.73/26,754.55
  6. Step 6: Final answer
    x = 21,288.48

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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.