Home / 31,130.92-42,960.54-16,983.73

Finding the Fourth Proportional to 31,130.92, 42,960.54 and 16,983.73

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Solution

The fourth proportional to 31,130.92, 42,960.54 and 16,983.73 is: 23,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.92 : 42,960.54 = 16,983.73 : x
  2. Step 2: Convert to fraction form
    31,130.92/42,960.54 = 16,983.73/x
  3. Step 3: Cross multiply
    31,130.92x = 42,960.54 × 16,983.73
  4. Step 4: Simplify right side
    31,130.92x = 729,630,212.01
  5. Step 5: Solve for x
    x = 729,630,212.01/31,130.92
  6. Step 6: Final answer
    x = 23,437.48

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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.