Home / 39,520.28-59,277.18-13,221.60

Finding the Fourth Proportional to 39,520.28, 59,277.18 and 13,221.60

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Solution

The fourth proportional to 39,520.28, 59,277.18 and 13,221.60 is: 19,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,520.28 : 59,277.18 = 13,221.60 : x
  2. Step 2: Convert to fraction form
    39,520.28/59,277.18 = 13,221.60/x
  3. Step 3: Cross multiply
    39,520.28x = 59,277.18 × 13,221.60
  4. Step 4: Simplify right side
    39,520.28x = 783,739,163.09
  5. Step 5: Solve for x
    x = 783,739,163.09/39,520.28
  6. Step 6: Final answer
    x = 19,831.32

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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.