Home / 31,444.12-43,392.88-18,868.88

Finding the Fourth Proportional to 31,444.12, 43,392.88 and 18,868.88

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Solution

The fourth proportional to 31,444.12, 43,392.88 and 18,868.88 is: 26,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,444.12 : 43,392.88 = 18,868.88 : x
  2. Step 2: Convert to fraction form
    31,444.12/43,392.88 = 18,868.88/x
  3. Step 3: Cross multiply
    31,444.12x = 43,392.88 × 18,868.88
  4. Step 4: Simplify right side
    31,444.12x = 818,775,045.57
  5. Step 5: Solve for x
    x = 818,775,045.57/31,444.12
  6. Step 6: Final answer
    x = 26,039.05

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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.