Home / 26,108.80-39,148.80-11,315.20

Finding the Fourth Proportional to 26,108.80, 39,148.80 and 11,315.20

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Solution

The fourth proportional to 26,108.80, 39,148.80 and 11,315.20 is: 16,966.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,108.80 : 39,148.80 = 11,315.20 : x
  2. Step 2: Convert to fraction form
    26,108.80/39,148.80 = 11,315.20/x
  3. Step 3: Cross multiply
    26,108.80x = 39,148.80 × 11,315.20
  4. Step 4: Simplify right side
    26,108.80x = 442,976,501.76
  5. Step 5: Solve for x
    x = 442,976,501.76/26,108.80
  6. Step 6: Final answer
    x = 16,966.56

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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.