Home / 26,390.80-36,423.42-15,060.28

Finding the Fourth Proportional to 26,390.80, 36,423.42 and 15,060.28

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Solution

The fourth proportional to 26,390.80, 36,423.42 and 15,060.28 is: 20,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.80 : 36,423.42 = 15,060.28 : x
  2. Step 2: Convert to fraction form
    26,390.80/36,423.42 = 15,060.28/x
  3. Step 3: Cross multiply
    26,390.80x = 36,423.42 × 15,060.28
  4. Step 4: Simplify right side
    26,390.80x = 548,546,903.76
  5. Step 5: Solve for x
    x = 548,546,903.76/26,390.80
  6. Step 6: Final answer
    x = 20,785.54

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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.