Home / 39,831.72-54,966.80-21,926.57

Finding the Fourth Proportional to 39,831.72, 54,966.80 and 21,926.57

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Solution

The fourth proportional to 39,831.72, 54,966.80 and 21,926.57 is: 30,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.72 : 54,966.80 = 21,926.57 : x
  2. Step 2: Convert to fraction form
    39,831.72/54,966.80 = 21,926.57/x
  3. Step 3: Cross multiply
    39,831.72x = 54,966.80 × 21,926.57
  4. Step 4: Simplify right side
    39,831.72x = 1,205,233,167.86
  5. Step 5: Solve for x
    x = 1,205,233,167.86/39,831.72
  6. Step 6: Final answer
    x = 30,258.13

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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.