Home / 31,127.24-42,955.44-16,979.96

Finding the Fourth Proportional to 31,127.24, 42,955.44 and 16,979.96

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Solution

The fourth proportional to 31,127.24, 42,955.44 and 16,979.96 is: 23,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,127.24 : 42,955.44 = 16,979.96 : x
  2. Step 2: Convert to fraction form
    31,127.24/42,955.44 = 16,979.96/x
  3. Step 3: Cross multiply
    31,127.24x = 42,955.44 × 16,979.96
  4. Step 4: Simplify right side
    31,127.24x = 729,381,652.98
  5. Step 5: Solve for x
    x = 729,381,652.98/31,127.24
  6. Step 6: Final answer
    x = 23,432.26

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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.