Home / 21,053.25-31,569.30-7,008.32

Finding the Fourth Proportional to 21,053.25, 31,569.30 and 7,008.32

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Solution

The fourth proportional to 21,053.25, 31,569.30 and 7,008.32 is: 10,508.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.25 : 31,569.30 = 7,008.32 : x
  2. Step 2: Convert to fraction form
    21,053.25/31,569.30 = 7,008.32/x
  3. Step 3: Cross multiply
    21,053.25x = 31,569.30 × 7,008.32
  4. Step 4: Simplify right side
    21,053.25x = 221,247,598.73
  5. Step 5: Solve for x
    x = 221,247,598.73/21,053.25
  6. Step 6: Final answer
    x = 10,508.95

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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.