Home / 26,321.60-36,319.56-14,991.28

Finding the Fourth Proportional to 26,321.60, 36,319.56 and 14,991.28

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Solution

The fourth proportional to 26,321.60, 36,319.56 and 14,991.28 is: 20,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,321.60 : 36,319.56 = 14,991.28 : x
  2. Step 2: Convert to fraction form
    26,321.60/36,319.56 = 14,991.28/x
  3. Step 3: Cross multiply
    26,321.60x = 36,319.56 × 14,991.28
  4. Step 4: Simplify right side
    26,321.60x = 544,476,693.44
  5. Step 5: Solve for x
    x = 544,476,693.44/26,321.60
  6. Step 6: Final answer
    x = 20,685.55

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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.