Home / 48,431.28-66,807.30-30,250.38

Finding the Fourth Proportional to 48,431.28, 66,807.30 and 30,250.38

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Solution

The fourth proportional to 48,431.28, 66,807.30 and 30,250.38 is: 41,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,431.28 : 66,807.30 = 30,250.38 : x
  2. Step 2: Convert to fraction form
    48,431.28/66,807.30 = 30,250.38/x
  3. Step 3: Cross multiply
    48,431.28x = 66,807.30 × 30,250.38
  4. Step 4: Simplify right side
    48,431.28x = 2,020,946,211.77
  5. Step 5: Solve for x
    x = 2,020,946,211.77/48,431.28
  6. Step 6: Final answer
    x = 41,728.12

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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.