Home / 31,112.64-42,936.48-16,966.26

Finding the Fourth Proportional to 31,112.64, 42,936.48 and 16,966.26

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Solution

The fourth proportional to 31,112.64, 42,936.48 and 16,966.26 is: 23,414.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.64 : 42,936.48 = 16,966.26 : x
  2. Step 2: Convert to fraction form
    31,112.64/42,936.48 = 16,966.26/x
  3. Step 3: Cross multiply
    31,112.64x = 42,936.48 × 16,966.26
  4. Step 4: Simplify right side
    31,112.64x = 728,471,483.16
  5. Step 5: Solve for x
    x = 728,471,483.16/31,112.64
  6. Step 6: Final answer
    x = 23,414.00

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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.