Home / 31,100.14-42,918.19-16,952.98

Finding the Fourth Proportional to 31,100.14, 42,918.19 and 16,952.98

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Solution

The fourth proportional to 31,100.14, 42,918.19 and 16,952.98 is: 23,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100.14 : 42,918.19 = 16,952.98 : x
  2. Step 2: Convert to fraction form
    31,100.14/42,918.19 = 16,952.98/x
  3. Step 3: Cross multiply
    31,100.14x = 42,918.19 × 16,952.98
  4. Step 4: Simplify right side
    31,100.14x = 727,591,216.71
  5. Step 5: Solve for x
    x = 727,591,216.71/31,100.14
  6. Step 6: Final answer
    x = 23,395.11

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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.