Home / 31,110.60-42,910.92-30,082.08

Finding the Fourth Proportional to 31,110.60, 42,910.92 and 30,082.08

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Solution

The fourth proportional to 31,110.60, 42,910.92 and 30,082.08 is: 41,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.60 : 42,910.92 = 30,082.08 : x
  2. Step 2: Convert to fraction form
    31,110.60/42,910.92 = 30,082.08/x
  3. Step 3: Cross multiply
    31,110.60x = 42,910.92 × 30,082.08
  4. Step 4: Simplify right side
    31,110.60x = 1,290,849,728.31
  5. Step 5: Solve for x
    x = 1,290,849,728.31/31,110.60
  6. Step 6: Final answer
    x = 41,492.28

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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.