Home / 35,243.40-48,641.22-20,139.24

Finding the Fourth Proportional to 35,243.40, 48,641.22 and 20,139.24

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Solution

The fourth proportional to 35,243.40, 48,641.22 and 20,139.24 is: 27,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,243.40 : 48,641.22 = 20,139.24 : x
  2. Step 2: Convert to fraction form
    35,243.40/48,641.22 = 20,139.24/x
  3. Step 3: Cross multiply
    35,243.40x = 48,641.22 × 20,139.24
  4. Step 4: Simplify right side
    35,243.40x = 979,597,203.47
  5. Step 5: Solve for x
    x = 979,597,203.47/35,243.40
  6. Step 6: Final answer
    x = 27,795.20

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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.