Home / 26,279.80-39,419.70-16,438.30

Finding the Fourth Proportional to 26,279.80, 39,419.70 and 16,438.30

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Solution

The fourth proportional to 26,279.80, 39,419.70 and 16,438.30 is: 24,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,279.80 : 39,419.70 = 16,438.30 : x
  2. Step 2: Convert to fraction form
    26,279.80/39,419.70 = 16,438.30/x
  3. Step 3: Cross multiply
    26,279.80x = 39,419.70 × 16,438.30
  4. Step 4: Simplify right side
    26,279.80x = 647,992,854.51
  5. Step 5: Solve for x
    x = 647,992,854.51/26,279.80
  6. Step 6: Final answer
    x = 24,657.45

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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.