Home / 26,283.12-36,230.40-20,969.52

Finding the Fourth Proportional to 26,283.12, 36,230.40 and 20,969.52

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Solution

The fourth proportional to 26,283.12, 36,230.40 and 20,969.52 is: 28,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,283.12 : 36,230.40 = 20,969.52 : x
  2. Step 2: Convert to fraction form
    26,283.12/36,230.40 = 20,969.52/x
  3. Step 3: Cross multiply
    26,283.12x = 36,230.40 × 20,969.52
  4. Step 4: Simplify right side
    26,283.12x = 759,734,097.41
  5. Step 5: Solve for x
    x = 759,734,097.41/26,283.12
  6. Step 6: Final answer
    x = 28,905.78

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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.