Home / 26,903.52-37,129.20-15,729.12

Finding the Fourth Proportional to 26,903.52, 37,129.20 and 15,729.12

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Solution

The fourth proportional to 26,903.52, 37,129.20 and 15,729.12 is: 21,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,903.52 : 37,129.20 = 15,729.12 : x
  2. Step 2: Convert to fraction form
    26,903.52/37,129.20 = 15,729.12/x
  3. Step 3: Cross multiply
    26,903.52x = 37,129.20 × 15,729.12
  4. Step 4: Simplify right side
    26,903.52x = 584,009,642.30
  5. Step 5: Solve for x
    x = 584,009,642.30/26,903.52
  6. Step 6: Final answer
    x = 21,707.56

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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.