Home / 39,735.78-59,566.60-13,422.12

Finding the Fourth Proportional to 39,735.78, 59,566.60 and 13,422.12

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Solution

The fourth proportional to 39,735.78, 59,566.60 and 13,422.12 is: 20,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.78 : 59,566.60 = 13,422.12 : x
  2. Step 2: Convert to fraction form
    39,735.78/59,566.60 = 13,422.12/x
  3. Step 3: Cross multiply
    39,735.78x = 59,566.60 × 13,422.12
  4. Step 4: Simplify right side
    39,735.78x = 799,510,053.19
  5. Step 5: Solve for x
    x = 799,510,053.19/39,735.78
  6. Step 6: Final answer
    x = 20,120.66

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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.