Home / 57,948.10-86,922.15-21,007.30

Finding the Fourth Proportional to 57,948.10, 86,922.15 and 21,007.30

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Solution

The fourth proportional to 57,948.10, 86,922.15 and 21,007.30 is: 31,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,948.10 : 86,922.15 = 21,007.30 : x
  2. Step 2: Convert to fraction form
    57,948.10/86,922.15 = 21,007.30/x
  3. Step 3: Cross multiply
    57,948.10x = 86,922.15 × 21,007.30
  4. Step 4: Simplify right side
    57,948.10x = 1,825,999,681.70
  5. Step 5: Solve for x
    x = 1,825,999,681.70/57,948.10
  6. Step 6: Final answer
    x = 31,510.95

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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.