Home / 39,701.48-54,788.96-21,797.76

Finding the Fourth Proportional to 39,701.48, 54,788.96 and 21,797.76

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Solution

The fourth proportional to 39,701.48, 54,788.96 and 21,797.76 is: 30,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.48 : 54,788.96 = 21,797.76 : x
  2. Step 2: Convert to fraction form
    39,701.48/54,788.96 = 21,797.76/x
  3. Step 3: Cross multiply
    39,701.48x = 54,788.96 × 21,797.76
  4. Step 4: Simplify right side
    39,701.48x = 1,194,276,600.73
  5. Step 5: Solve for x
    x = 1,194,276,600.73/39,701.48
  6. Step 6: Final answer
    x = 30,081.41

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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.