Home / 26,786.79-36,956.22-15,459.14

Finding the Fourth Proportional to 26,786.79, 36,956.22 and 15,459.14

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Solution

The fourth proportional to 26,786.79, 36,956.22 and 15,459.14 is: 21,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.79 : 36,956.22 = 15,459.14 : x
  2. Step 2: Convert to fraction form
    26,786.79/36,956.22 = 15,459.14/x
  3. Step 3: Cross multiply
    26,786.79x = 36,956.22 × 15,459.14
  4. Step 4: Simplify right side
    26,786.79x = 571,311,471.24
  5. Step 5: Solve for x
    x = 571,311,471.24/26,786.79
  6. Step 6: Final answer
    x = 21,328.11

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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.