Home / 31,108.34-42,928.44-17,679.36

Finding the Fourth Proportional to 31,108.34, 42,928.44 and 17,679.36

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Solution

The fourth proportional to 31,108.34, 42,928.44 and 17,679.36 is: 24,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.34 : 42,928.44 = 17,679.36 : x
  2. Step 2: Convert to fraction form
    31,108.34/42,928.44 = 17,679.36/x
  3. Step 3: Cross multiply
    31,108.34x = 42,928.44 × 17,679.36
  4. Step 4: Simplify right side
    31,108.34x = 758,947,345.00
  5. Step 5: Solve for x
    x = 758,947,345.00/31,108.34
  6. Step 6: Final answer
    x = 24,396.91

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1.5x scale

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.