Home / 39,710.52-54,800.57-21,806.68

Finding the Fourth Proportional to 39,710.52, 54,800.57 and 21,806.68

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Solution

The fourth proportional to 39,710.52, 54,800.57 and 21,806.68 is: 30,093.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.52 : 54,800.57 = 21,806.68 : x
  2. Step 2: Convert to fraction form
    39,710.52/54,800.57 = 21,806.68/x
  3. Step 3: Cross multiply
    39,710.52x = 54,800.57 × 21,806.68
  4. Step 4: Simplify right side
    39,710.52x = 1,195,018,493.81
  5. Step 5: Solve for x
    x = 1,195,018,493.81/39,710.52
  6. Step 6: Final answer
    x = 30,093.25

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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.