Home / 26,008.64-38,910.32-20,040.31

Finding the Fourth Proportional to 26,008.64, 38,910.32 and 20,040.31

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Solution

The fourth proportional to 26,008.64, 38,910.32 and 20,040.31 is: 29,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,008.64 : 38,910.32 = 20,040.31 : x
  2. Step 2: Convert to fraction form
    26,008.64/38,910.32 = 20,040.31/x
  3. Step 3: Cross multiply
    26,008.64x = 38,910.32 × 20,040.31
  4. Step 4: Simplify right side
    26,008.64x = 779,775,007.61
  5. Step 5: Solve for x
    x = 779,775,007.61/26,008.64
  6. Step 6: Final answer
    x = 29,981.38

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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.