Home / 26,659.40-40,013.69-13,520.99

Finding the Fourth Proportional to 26,659.40, 40,013.69 and 13,520.99

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Solution

The fourth proportional to 26,659.40, 40,013.69 and 13,520.99 is: 20,293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,659.40 : 40,013.69 = 13,520.99 : x
  2. Step 2: Convert to fraction form
    26,659.40/40,013.69 = 13,520.99/x
  3. Step 3: Cross multiply
    26,659.40x = 40,013.69 × 13,520.99
  4. Step 4: Simplify right side
    26,659.40x = 541,024,836.19
  5. Step 5: Solve for x
    x = 541,024,836.19/26,659.40
  6. Step 6: Final answer
    x = 20,293.97

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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.