Home / 30,875.38-42,608.06-16,728.22

Finding the Fourth Proportional to 30,875.38, 42,608.06 and 16,728.22

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Solution

The fourth proportional to 30,875.38, 42,608.06 and 16,728.22 is: 23,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,875.38 : 42,608.06 = 16,728.22 : x
  2. Step 2: Convert to fraction form
    30,875.38/42,608.06 = 16,728.22/x
  3. Step 3: Cross multiply
    30,875.38x = 42,608.06 × 16,728.22
  4. Step 4: Simplify right side
    30,875.38x = 712,757,001.45
  5. Step 5: Solve for x
    x = 712,757,001.45/30,875.38
  6. Step 6: Final answer
    x = 23,084.97

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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.