Home / 26,909.16-40,363.77-12,865.88

Finding the Fourth Proportional to 26,909.16, 40,363.77 and 12,865.88

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Solution

The fourth proportional to 26,909.16, 40,363.77 and 12,865.88 is: 19,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.16 : 40,363.77 = 12,865.88 : x
  2. Step 2: Convert to fraction form
    26,909.16/40,363.77 = 12,865.88/x
  3. Step 3: Cross multiply
    26,909.16x = 40,363.77 × 12,865.88
  4. Step 4: Simplify right side
    26,909.16x = 519,315,219.35
  5. Step 5: Solve for x
    x = 519,315,219.35/26,909.16
  6. Step 6: Final answer
    x = 19,298.83

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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.