Home / 39,764.21-54,875.66-21,616.15

Finding the Fourth Proportional to 39,764.21, 54,875.66 and 21,616.15

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Solution

The fourth proportional to 39,764.21, 54,875.66 and 21,616.15 is: 29,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764.21 : 54,875.66 = 21,616.15 : x
  2. Step 2: Convert to fraction form
    39,764.21/54,875.66 = 21,616.15/x
  3. Step 3: Cross multiply
    39,764.21x = 54,875.66 × 21,616.15
  4. Step 4: Simplify right side
    39,764.21x = 1,186,200,581.06
  5. Step 5: Solve for x
    x = 1,186,200,581.06/39,764.21
  6. Step 6: Final answer
    x = 29,830.86

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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.