Home / 26,038.32-39,016.56-20,129.70

Finding the Fourth Proportional to 26,038.32, 39,016.56 and 20,129.70

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Solution

The fourth proportional to 26,038.32, 39,016.56 and 20,129.70 is: 30,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,038.32 : 39,016.56 = 20,129.70 : x
  2. Step 2: Convert to fraction form
    26,038.32/39,016.56 = 20,129.70/x
  3. Step 3: Cross multiply
    26,038.32x = 39,016.56 × 20,129.70
  4. Step 4: Simplify right side
    26,038.32x = 785,391,647.83
  5. Step 5: Solve for x
    x = 785,391,647.83/26,038.32
  6. Step 6: Final answer
    x = 30,162.92

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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.