Home / 31,050.40-42,826.44-19,710.04

Finding the Fourth Proportional to 31,050.40, 42,826.44 and 19,710.04

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Solution

The fourth proportional to 31,050.40, 42,826.44 and 19,710.04 is: 27,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,050.40 : 42,826.44 = 19,710.04 : x
  2. Step 2: Convert to fraction form
    31,050.40/42,826.44 = 19,710.04/x
  3. Step 3: Cross multiply
    31,050.40x = 42,826.44 × 19,710.04
  4. Step 4: Simplify right side
    31,050.40x = 844,110,845.46
  5. Step 5: Solve for x
    x = 844,110,845.46/31,050.40
  6. Step 6: Final answer
    x = 27,185.18

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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.