Home / 15,820.02-21,831.36-11,291.04

Finding the Fourth Proportional to 15,820.02, 21,831.36 and 11,291.04

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Solution

The fourth proportional to 15,820.02, 21,831.36 and 11,291.04 is: 15,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.02 : 21,831.36 = 11,291.04 : x
  2. Step 2: Convert to fraction form
    15,820.02/21,831.36 = 11,291.04/x
  3. Step 3: Cross multiply
    15,820.02x = 21,831.36 × 11,291.04
  4. Step 4: Simplify right side
    15,820.02x = 246,498,759.01
  5. Step 5: Solve for x
    x = 246,498,759.01/15,820.02
  6. Step 6: Final answer
    x = 15,581.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.