Home / 31,875.52-43,987.44-18,444.91

Finding the Fourth Proportional to 31,875.52, 43,987.44 and 18,444.91

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Solution

The fourth proportional to 31,875.52, 43,987.44 and 18,444.91 is: 25,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.52 : 43,987.44 = 18,444.91 : x
  2. Step 2: Convert to fraction form
    31,875.52/43,987.44 = 18,444.91/x
  3. Step 3: Cross multiply
    31,875.52x = 43,987.44 × 18,444.91
  4. Step 4: Simplify right side
    31,875.52x = 811,344,371.93
  5. Step 5: Solve for x
    x = 811,344,371.93/31,875.52
  6. Step 6: Final answer
    x = 25,453.53

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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.