Home / 26,478.74-39,723-8,710.40

Finding the Fourth Proportional to 26,478.74, 39,723 and 8,710.40

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Solution

The fourth proportional to 26,478.74, 39,723 and 8,710.40 is: 13,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.74 : 39,723 = 8,710.40 : x
  2. Step 2: Convert to fraction form
    26,478.74/39,723 = 8,710.40/x
  3. Step 3: Cross multiply
    26,478.74x = 39,723 × 8,710.40
  4. Step 4: Simplify right side
    26,478.74x = 346,003,219.20
  5. Step 5: Solve for x
    x = 346,003,219.20/26,478.74
  6. Step 6: Final answer
    x = 13,067.21

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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.