Home / 17,015.20-23,479.37-15,761.32

Finding the Fourth Proportional to 17,015.20, 23,479.37 and 15,761.32

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Solution

The fourth proportional to 17,015.20, 23,479.37 and 15,761.32 is: 21,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,015.20 : 23,479.37 = 15,761.32 : x
  2. Step 2: Convert to fraction form
    17,015.20/23,479.37 = 15,761.32/x
  3. Step 3: Cross multiply
    17,015.20x = 23,479.37 × 15,761.32
  4. Step 4: Simplify right side
    17,015.20x = 370,065,726.46
  5. Step 5: Solve for x
    x = 370,065,726.46/17,015.20
  6. Step 6: Final answer
    x = 21,749.13

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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.