Home / 26,689.78-36,835.57-15,359.05

Finding the Fourth Proportional to 26,689.78, 36,835.57 and 15,359.05

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Solution

The fourth proportional to 26,689.78, 36,835.57 and 15,359.05 is: 21,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,689.78 : 36,835.57 = 15,359.05 : x
  2. Step 2: Convert to fraction form
    26,689.78/36,835.57 = 15,359.05/x
  3. Step 3: Cross multiply
    26,689.78x = 36,835.57 × 15,359.05
  4. Step 4: Simplify right side
    26,689.78x = 565,759,236.66
  5. Step 5: Solve for x
    x = 565,759,236.66/26,689.78
  6. Step 6: Final answer
    x = 21,197.60

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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.