Home / 39,732.12-54,831.74-21,827.75

Finding the Fourth Proportional to 39,732.12, 54,831.74 and 21,827.75

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Solution

The fourth proportional to 39,732.12, 54,831.74 and 21,827.75 is: 30,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.12 : 54,831.74 = 21,827.75 : x
  2. Step 2: Convert to fraction form
    39,732.12/54,831.74 = 21,827.75/x
  3. Step 3: Cross multiply
    39,732.12x = 54,831.74 × 21,827.75
  4. Step 4: Simplify right side
    39,732.12x = 1,196,853,129.49
  5. Step 5: Solve for x
    x = 1,196,853,129.49/39,732.12
  6. Step 6: Final answer
    x = 30,123.06

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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.