Home / 31,087.64-42,900.36-16,940.18

Finding the Fourth Proportional to 31,087.64, 42,900.36 and 16,940.18

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Solution

The fourth proportional to 31,087.64, 42,900.36 and 16,940.18 is: 23,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,087.64 : 42,900.36 = 16,940.18 : x
  2. Step 2: Convert to fraction form
    31,087.64/42,900.36 = 16,940.18/x
  3. Step 3: Cross multiply
    31,087.64x = 42,900.36 × 16,940.18
  4. Step 4: Simplify right side
    31,087.64x = 726,739,820.46
  5. Step 5: Solve for x
    x = 726,739,820.46/31,087.64
  6. Step 6: Final answer
    x = 23,377.13

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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.