Home / 39,955.38-59,988.45-20,247.78

Finding the Fourth Proportional to 39,955.38, 59,988.45 and 20,247.78

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Solution

The fourth proportional to 39,955.38, 59,988.45 and 20,247.78 is: 30,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,955.38 : 59,988.45 = 20,247.78 : x
  2. Step 2: Convert to fraction form
    39,955.38/59,988.45 = 20,247.78/x
  3. Step 3: Cross multiply
    39,955.38x = 59,988.45 × 20,247.78
  4. Step 4: Simplify right side
    39,955.38x = 1,214,632,938.14
  5. Step 5: Solve for x
    x = 1,214,632,938.14/39,955.38
  6. Step 6: Final answer
    x = 30,399.73

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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.