Home / 31,490.40-43,456.85-17,150.34

Finding the Fourth Proportional to 31,490.40, 43,456.85 and 17,150.34

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Solution

The fourth proportional to 31,490.40, 43,456.85 and 17,150.34 is: 23,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.40 : 43,456.85 = 17,150.34 : x
  2. Step 2: Convert to fraction form
    31,490.40/43,456.85 = 17,150.34/x
  3. Step 3: Cross multiply
    31,490.40x = 43,456.85 × 17,150.34
  4. Step 4: Simplify right side
    31,490.40x = 745,299,752.83
  5. Step 5: Solve for x
    x = 745,299,752.83/31,490.40
  6. Step 6: Final answer
    x = 23,667.52

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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.