Home / 23,621.82-35,247.68-21,139.58

Finding the Fourth Proportional to 23,621.82, 35,247.68 and 21,139.58

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Solution

The fourth proportional to 23,621.82, 35,247.68 and 21,139.58 is: 31,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,621.82 : 35,247.68 = 21,139.58 : x
  2. Step 2: Convert to fraction form
    23,621.82/35,247.68 = 21,139.58/x
  3. Step 3: Cross multiply
    23,621.82x = 35,247.68 × 21,139.58
  4. Step 4: Simplify right side
    23,621.82x = 745,120,869.24
  5. Step 5: Solve for x
    x = 745,120,869.24/23,621.82
  6. Step 6: Final answer
    x = 31,543.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.