Home / 31,077.53-42,886.60-16,930.07

Finding the Fourth Proportional to 31,077.53, 42,886.60 and 16,930.07

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Solution

The fourth proportional to 31,077.53, 42,886.60 and 16,930.07 is: 23,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,077.53 : 42,886.60 = 16,930.07 : x
  2. Step 2: Convert to fraction form
    31,077.53/42,886.60 = 16,930.07/x
  3. Step 3: Cross multiply
    31,077.53x = 42,886.60 × 16,930.07
  4. Step 4: Simplify right side
    31,077.53x = 726,073,140.06
  5. Step 5: Solve for x
    x = 726,073,140.06/31,077.53
  6. Step 6: Final answer
    x = 23,363.28

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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.