Home / 31,127.52-42,954.48-16,979.52

Finding the Fourth Proportional to 31,127.52, 42,954.48 and 16,979.52

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Solution

The fourth proportional to 31,127.52, 42,954.48 and 16,979.52 is: 23,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,127.52 : 42,954.48 = 16,979.52 : x
  2. Step 2: Convert to fraction form
    31,127.52/42,954.48 = 16,979.52/x
  3. Step 3: Cross multiply
    31,127.52x = 42,954.48 × 16,979.52
  4. Step 4: Simplify right side
    31,127.52x = 729,346,452.25
  5. Step 5: Solve for x
    x = 729,346,452.25/31,127.52
  6. Step 6: Final answer
    x = 23,430.92

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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.