Home / 20,417.36-30,567.60-13,831.85

Finding the Fourth Proportional to 20,417.36, 30,567.60 and 13,831.85

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Solution

The fourth proportional to 20,417.36, 30,567.60 and 13,831.85 is: 20,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.36 : 30,567.60 = 13,831.85 : x
  2. Step 2: Convert to fraction form
    20,417.36/30,567.60 = 13,831.85/x
  3. Step 3: Cross multiply
    20,417.36x = 30,567.60 × 13,831.85
  4. Step 4: Simplify right side
    20,417.36x = 422,806,305.22
  5. Step 5: Solve for x
    x = 422,806,305.22/20,417.36
  6. Step 6: Final answer
    x = 20,708.18

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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.