Home / 20,893.43-28,831.21-11,462.00

Finding the Fourth Proportional to 20,893.43, 28,831.21 and 11,462.00

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Solution

The fourth proportional to 20,893.43, 28,831.21 and 11,462.00 is: 15,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.43 : 28,831.21 = 11,462.00 : x
  2. Step 2: Convert to fraction form
    20,893.43/28,831.21 = 11,462.00/x
  3. Step 3: Cross multiply
    20,893.43x = 28,831.21 × 11,462.00
  4. Step 4: Simplify right side
    20,893.43x = 330,463,156.21
  5. Step 5: Solve for x
    x = 330,463,156.21/20,893.43
  6. Step 6: Final answer
    x = 15,816.60

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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.