Home / 21,058.86-31,577.73-7,013.95

Finding the Fourth Proportional to 21,058.86, 31,577.73 and 7,013.95

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Solution

The fourth proportional to 21,058.86, 31,577.73 and 7,013.95 is: 10,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.86 : 31,577.73 = 7,013.95 : x
  2. Step 2: Convert to fraction form
    21,058.86/31,577.73 = 7,013.95/x
  3. Step 3: Cross multiply
    21,058.86x = 31,577.73 × 7,013.95
  4. Step 4: Simplify right side
    21,058.86x = 221,484,645.65
  5. Step 5: Solve for x
    x = 221,484,645.65/21,058.86
  6. Step 6: Final answer
    x = 10,517.41

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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.