Home / 26,338.80-39,443.40-19,729.20

Finding the Fourth Proportional to 26,338.80, 39,443.40 and 19,729.20

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Solution

The fourth proportional to 26,338.80, 39,443.40 and 19,729.20 is: 29,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,338.80 : 39,443.40 = 19,729.20 : x
  2. Step 2: Convert to fraction form
    26,338.80/39,443.40 = 19,729.20/x
  3. Step 3: Cross multiply
    26,338.80x = 39,443.40 × 19,729.20
  4. Step 4: Simplify right side
    26,338.80x = 778,186,727.28
  5. Step 5: Solve for x
    x = 778,186,727.28/26,338.80
  6. Step 6: Final answer
    x = 29,545.26

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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.