Home / 39,734.73-54,831.24-21,830.49

Finding the Fourth Proportional to 39,734.73, 54,831.24 and 21,830.49

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Solution

The fourth proportional to 39,734.73, 54,831.24 and 21,830.49 is: 30,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,734.73 : 54,831.24 = 21,830.49 : x
  2. Step 2: Convert to fraction form
    39,734.73/54,831.24 = 21,830.49/x
  3. Step 3: Cross multiply
    39,734.73x = 54,831.24 × 21,830.49
  4. Step 4: Simplify right side
    39,734.73x = 1,196,992,836.51
  5. Step 5: Solve for x
    x = 1,196,992,836.51/39,734.73
  6. Step 6: Final answer
    x = 30,124.60

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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.