Home / 39,831.89-54,968.01-21,926.76

Finding the Fourth Proportional to 39,831.89, 54,968.01 and 21,926.76

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Solution

The fourth proportional to 39,831.89, 54,968.01 and 21,926.76 is: 30,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.89 : 54,968.01 = 21,926.76 : x
  2. Step 2: Convert to fraction form
    39,831.89/54,968.01 = 21,926.76/x
  3. Step 3: Cross multiply
    39,831.89x = 54,968.01 × 21,926.76
  4. Step 4: Simplify right side
    39,831.89x = 1,205,270,362.95
  5. Step 5: Solve for x
    x = 1,205,270,362.95/39,831.89
  6. Step 6: Final answer
    x = 30,258.93

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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.