Home / 39,491.20-54,497.68-21,586.16

Finding the Fourth Proportional to 39,491.20, 54,497.68 and 21,586.16

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Solution

The fourth proportional to 39,491.20, 54,497.68 and 21,586.16 is: 29,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,491.20 : 54,497.68 = 21,586.16 : x
  2. Step 2: Convert to fraction form
    39,491.20/54,497.68 = 21,586.16/x
  3. Step 3: Cross multiply
    39,491.20x = 54,497.68 × 21,586.16
  4. Step 4: Simplify right side
    39,491.20x = 1,176,395,640.11
  5. Step 5: Solve for x
    x = 1,176,395,640.11/39,491.20
  6. Step 6: Final answer
    x = 29,788.80

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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.