Home / 31,800.52-43,886.76-18,372.34

Finding the Fourth Proportional to 31,800.52, 43,886.76 and 18,372.34

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Solution

The fourth proportional to 31,800.52, 43,886.76 and 18,372.34 is: 25,355.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.52 : 43,886.76 = 18,372.34 : x
  2. Step 2: Convert to fraction form
    31,800.52/43,886.76 = 18,372.34/x
  3. Step 3: Cross multiply
    31,800.52x = 43,886.76 × 18,372.34
  4. Step 4: Simplify right side
    31,800.52x = 806,302,476.22
  5. Step 5: Solve for x
    x = 806,302,476.22/31,800.52
  6. Step 6: Final answer
    x = 25,355.01

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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.