Home / 38,822.22-53,576.56-21,831.80

Finding the Fourth Proportional to 38,822.22, 53,576.56 and 21,831.80

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Solution

The fourth proportional to 38,822.22, 53,576.56 and 21,831.80 is: 30,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,822.22 : 53,576.56 = 21,831.80 : x
  2. Step 2: Convert to fraction form
    38,822.22/53,576.56 = 21,831.80/x
  3. Step 3: Cross multiply
    38,822.22x = 53,576.56 × 21,831.80
  4. Step 4: Simplify right side
    38,822.22x = 1,169,672,742.61
  5. Step 5: Solve for x
    x = 1,169,672,742.61/38,822.22
  6. Step 6: Final answer
    x = 30,128.95

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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.