Home / 35,521.20-48,989.16-21,371.40

Finding the Fourth Proportional to 35,521.20, 48,989.16 and 21,371.40

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Solution

The fourth proportional to 35,521.20, 48,989.16 and 21,371.40 is: 29,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,521.20 : 48,989.16 = 21,371.40 : x
  2. Step 2: Convert to fraction form
    35,521.20/48,989.16 = 21,371.40/x
  3. Step 3: Cross multiply
    35,521.20x = 48,989.16 × 21,371.40
  4. Step 4: Simplify right side
    35,521.20x = 1,046,966,934.02
  5. Step 5: Solve for x
    x = 1,046,966,934.02/35,521.20
  6. Step 6: Final answer
    x = 29,474.42

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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.