Home / 31,750.40-43,818.42-18,323.84

Finding the Fourth Proportional to 31,750.40, 43,818.42 and 18,323.84

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Solution

The fourth proportional to 31,750.40, 43,818.42 and 18,323.84 is: 25,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.40 : 43,818.42 = 18,323.84 : x
  2. Step 2: Convert to fraction form
    31,750.40/43,818.42 = 18,323.84/x
  3. Step 3: Cross multiply
    31,750.40x = 43,818.42 × 18,323.84
  4. Step 4: Simplify right side
    31,750.40x = 802,921,717.13
  5. Step 5: Solve for x
    x = 802,921,717.13/31,750.40
  6. Step 6: Final answer
    x = 25,288.55

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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.