Home / 19,480.86-29,221.29-12,560.22

Finding the Fourth Proportional to 19,480.86, 29,221.29 and 12,560.22

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Solution

The fourth proportional to 19,480.86, 29,221.29 and 12,560.22 is: 18,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.86 : 29,221.29 = 12,560.22 : x
  2. Step 2: Convert to fraction form
    19,480.86/29,221.29 = 12,560.22/x
  3. Step 3: Cross multiply
    19,480.86x = 29,221.29 × 12,560.22
  4. Step 4: Simplify right side
    19,480.86x = 367,025,831.08
  5. Step 5: Solve for x
    x = 367,025,831.08/19,480.86
  6. Step 6: Final answer
    x = 18,840.33

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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.