Home / 38,516.32-53,101.12-30,584.80

Finding the Fourth Proportional to 38,516.32, 53,101.12 and 30,584.80

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Solution

The fourth proportional to 38,516.32, 53,101.12 and 30,584.80 is: 42,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.32 : 53,101.12 = 30,584.80 : x
  2. Step 2: Convert to fraction form
    38,516.32/53,101.12 = 30,584.80/x
  3. Step 3: Cross multiply
    38,516.32x = 53,101.12 × 30,584.80
  4. Step 4: Simplify right side
    38,516.32x = 1,624,087,134.98
  5. Step 5: Solve for x
    x = 1,624,087,134.98/38,516.32
  6. Step 6: Final answer
    x = 42,166.21

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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.