Home / 38,461.30-57,708.15-20,943.70

Finding the Fourth Proportional to 38,461.30, 57,708.15 and 20,943.70

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Solution

The fourth proportional to 38,461.30, 57,708.15 and 20,943.70 is: 31,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461.30 : 57,708.15 = 20,943.70 : x
  2. Step 2: Convert to fraction form
    38,461.30/57,708.15 = 20,943.70/x
  3. Step 3: Cross multiply
    38,461.30x = 57,708.15 × 20,943.70
  4. Step 4: Simplify right side
    38,461.30x = 1,208,622,181.16
  5. Step 5: Solve for x
    x = 1,208,622,181.16/38,461.30
  6. Step 6: Final answer
    x = 31,424.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.