Home / 31,052.57-42,851.13-16,905.38

Finding the Fourth Proportional to 31,052.57, 42,851.13 and 16,905.38

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Solution

The fourth proportional to 31,052.57, 42,851.13 and 16,905.38 is: 23,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.57 : 42,851.13 = 16,905.38 : x
  2. Step 2: Convert to fraction form
    31,052.57/42,851.13 = 16,905.38/x
  3. Step 3: Cross multiply
    31,052.57x = 42,851.13 × 16,905.38
  4. Step 4: Simplify right side
    31,052.57x = 724,414,636.08
  5. Step 5: Solve for x
    x = 724,414,636.08/31,052.57
  6. Step 6: Final answer
    x = 23,328.65

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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.