Home / 26,679.12-36,773.28-18,920.52

Finding the Fourth Proportional to 26,679.12, 36,773.28 and 18,920.52

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Solution

The fourth proportional to 26,679.12, 36,773.28 and 18,920.52 is: 26,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.12 : 36,773.28 = 18,920.52 : x
  2. Step 2: Convert to fraction form
    26,679.12/36,773.28 = 18,920.52/x
  3. Step 3: Cross multiply
    26,679.12x = 36,773.28 × 18,920.52
  4. Step 4: Simplify right side
    26,679.12x = 695,769,579.71
  5. Step 5: Solve for x
    x = 695,769,579.71/26,679.12
  6. Step 6: Final answer
    x = 26,079.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.