Home / 26,265.60-36,190.80-21,211.20

Finding the Fourth Proportional to 26,265.60, 36,190.80 and 21,211.20

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Solution

The fourth proportional to 26,265.60, 36,190.80 and 21,211.20 is: 29,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,265.60 : 36,190.80 = 21,211.20 : x
  2. Step 2: Convert to fraction form
    26,265.60/36,190.80 = 21,211.20/x
  3. Step 3: Cross multiply
    26,265.60x = 36,190.80 × 21,211.20
  4. Step 4: Simplify right side
    26,265.60x = 767,650,296.96
  5. Step 5: Solve for x
    x = 767,650,296.96/26,265.60
  6. Step 6: Final answer
    x = 29,226.45

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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.