Home / 26,191.60-36,138.80-15,579.16

Finding the Fourth Proportional to 26,191.60, 36,138.80 and 15,579.16

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Solution

The fourth proportional to 26,191.60, 36,138.80 and 15,579.16 is: 21,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,191.60 : 36,138.80 = 15,579.16 : x
  2. Step 2: Convert to fraction form
    26,191.60/36,138.80 = 15,579.16/x
  3. Step 3: Cross multiply
    26,191.60x = 36,138.80 × 15,579.16
  4. Step 4: Simplify right side
    26,191.60x = 563,012,147.41
  5. Step 5: Solve for x
    x = 563,012,147.41/26,191.60
  6. Step 6: Final answer
    x = 21,495.91

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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.