Home / 26,170.13-39,240.32-17,860.21

Finding the Fourth Proportional to 26,170.13, 39,240.32 and 17,860.21

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Solution

The fourth proportional to 26,170.13, 39,240.32 and 17,860.21 is: 26,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,170.13 : 39,240.32 = 17,860.21 : x
  2. Step 2: Convert to fraction form
    26,170.13/39,240.32 = 17,860.21/x
  3. Step 3: Cross multiply
    26,170.13x = 39,240.32 × 17,860.21
  4. Step 4: Simplify right side
    26,170.13x = 700,840,539.69
  5. Step 5: Solve for x
    x = 700,840,539.69/26,170.13
  6. Step 6: Final answer
    x = 26,780.17

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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.