Home / 31,137.24-42,970.34-17,710.43

Finding the Fourth Proportional to 31,137.24, 42,970.34 and 17,710.43

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Solution

The fourth proportional to 31,137.24, 42,970.34 and 17,710.43 is: 24,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,137.24 : 42,970.34 = 17,710.43 : x
  2. Step 2: Convert to fraction form
    31,137.24/42,970.34 = 17,710.43/x
  3. Step 3: Cross multiply
    31,137.24x = 42,970.34 × 17,710.43
  4. Step 4: Simplify right side
    31,137.24x = 761,023,198.65
  5. Step 5: Solve for x
    x = 761,023,198.65/31,137.24
  6. Step 6: Final answer
    x = 24,440.93

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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.