Home / 38,716.08-57,812.08-30,729.04

Finding the Fourth Proportional to 38,716.08, 57,812.08 and 30,729.04

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Solution

The fourth proportional to 38,716.08, 57,812.08 and 30,729.04 is: 45,885.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,716.08 : 57,812.08 = 30,729.04 : x
  2. Step 2: Convert to fraction form
    38,716.08/57,812.08 = 30,729.04/x
  3. Step 3: Cross multiply
    38,716.08x = 57,812.08 × 30,729.04
  4. Step 4: Simplify right side
    38,716.08x = 1,776,509,718.80
  5. Step 5: Solve for x
    x = 1,776,509,718.80/38,716.08
  6. Step 6: Final answer
    x = 45,885.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.