Home / 39,072.07-58,639.52-20,357.70

Finding the Fourth Proportional to 39,072.07, 58,639.52 and 20,357.70

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Solution

The fourth proportional to 39,072.07, 58,639.52 and 20,357.70 is: 30,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.07 : 58,639.52 = 20,357.70 : x
  2. Step 2: Convert to fraction form
    39,072.07/58,639.52 = 20,357.70/x
  3. Step 3: Cross multiply
    39,072.07x = 58,639.52 × 20,357.70
  4. Step 4: Simplify right side
    39,072.07x = 1,193,765,756.30
  5. Step 5: Solve for x
    x = 1,193,765,756.30/39,072.07
  6. Step 6: Final answer
    x = 30,552.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.