Home / 30,943.31-42,701.76-16,796.12

Finding the Fourth Proportional to 30,943.31, 42,701.76 and 16,796.12

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Solution

The fourth proportional to 30,943.31, 42,701.76 and 16,796.12 is: 23,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.31 : 42,701.76 = 16,796.12 : x
  2. Step 2: Convert to fraction form
    30,943.31/42,701.76 = 16,796.12/x
  3. Step 3: Cross multiply
    30,943.31x = 42,701.76 × 16,796.12
  4. Step 4: Simplify right side
    30,943.31x = 717,223,671.66
  5. Step 5: Solve for x
    x = 717,223,671.66/30,943.31
  6. Step 6: Final answer
    x = 23,178.64

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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.