Home / 31,439.41-43,374.08-18,003.53

Finding the Fourth Proportional to 31,439.41, 43,374.08 and 18,003.53

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Solution

The fourth proportional to 31,439.41, 43,374.08 and 18,003.53 is: 24,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.41 : 43,374.08 = 18,003.53 : x
  2. Step 2: Convert to fraction form
    31,439.41/43,374.08 = 18,003.53/x
  3. Step 3: Cross multiply
    31,439.41x = 43,374.08 × 18,003.53
  4. Step 4: Simplify right side
    31,439.41x = 780,886,703.95
  5. Step 5: Solve for x
    x = 780,886,703.95/31,439.41
  6. Step 6: Final answer
    x = 24,837.83

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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.