Home / 39,831.48-54,966.42-21,925.80

Finding the Fourth Proportional to 39,831.48, 54,966.42 and 21,925.80

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Solution

The fourth proportional to 39,831.48, 54,966.42 and 21,925.80 is: 30,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.48 : 54,966.42 = 21,925.80 : x
  2. Step 2: Convert to fraction form
    39,831.48/54,966.42 = 21,925.80/x
  3. Step 3: Cross multiply
    39,831.48x = 54,966.42 × 21,925.80
  4. Step 4: Simplify right side
    39,831.48x = 1,205,182,731.64
  5. Step 5: Solve for x
    x = 1,205,182,731.64/39,831.48
  6. Step 6: Final answer
    x = 30,257.04

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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.