Home / 31,842-43,928.32-19,884.58

Finding the Fourth Proportional to 31,842, 43,928.32 and 19,884.58

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Solution

The fourth proportional to 31,842, 43,928.32 and 19,884.58 is: 27,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,842 : 43,928.32 = 19,884.58 : x
  2. Step 2: Convert to fraction form
    31,842/43,928.32 = 19,884.58/x
  3. Step 3: Cross multiply
    31,842x = 43,928.32 × 19,884.58
  4. Step 4: Simplify right side
    31,842x = 873,496,193.31
  5. Step 5: Solve for x
    x = 873,496,193.31/31,842
  6. Step 6: Final answer
    x = 27,432.20

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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.