Home / 26,038.28-39,005.16-11,978.71

Finding the Fourth Proportional to 26,038.28, 39,005.16 and 11,978.71

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Solution

The fourth proportional to 26,038.28, 39,005.16 and 11,978.71 is: 17,944.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,038.28 : 39,005.16 = 11,978.71 : x
  2. Step 2: Convert to fraction form
    26,038.28/39,005.16 = 11,978.71/x
  3. Step 3: Cross multiply
    26,038.28x = 39,005.16 × 11,978.71
  4. Step 4: Simplify right side
    26,038.28x = 467,231,500.14
  5. Step 5: Solve for x
    x = 467,231,500.14/26,038.28
  6. Step 6: Final answer
    x = 17,944.02

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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.