Home / 30,833.16-42,549.78-16,685.97

Finding the Fourth Proportional to 30,833.16, 42,549.78 and 16,685.97

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Solution

The fourth proportional to 30,833.16, 42,549.78 and 16,685.97 is: 23,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,833.16 : 42,549.78 = 16,685.97 : x
  2. Step 2: Convert to fraction form
    30,833.16/42,549.78 = 16,685.97/x
  3. Step 3: Cross multiply
    30,833.16x = 42,549.78 × 16,685.97
  4. Step 4: Simplify right side
    30,833.16x = 709,984,352.59
  5. Step 5: Solve for x
    x = 709,984,352.59/30,833.16
  6. Step 6: Final answer
    x = 23,026.65

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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.