Home / 38,867.54-53,636.76-21,871.71

Finding the Fourth Proportional to 38,867.54, 53,636.76 and 21,871.71

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Solution

The fourth proportional to 38,867.54, 53,636.76 and 21,871.71 is: 30,182.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,867.54 : 53,636.76 = 21,871.71 : x
  2. Step 2: Convert to fraction form
    38,867.54/53,636.76 = 21,871.71/x
  3. Step 3: Cross multiply
    38,867.54x = 53,636.76 × 21,871.71
  4. Step 4: Simplify right side
    38,867.54x = 1,173,127,660.06
  5. Step 5: Solve for x
    x = 1,173,127,660.06/38,867.54
  6. Step 6: Final answer
    x = 30,182.71

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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.