Home / 39,395.48-54,366.96-21,491.52

Finding the Fourth Proportional to 39,395.48, 54,366.96 and 21,491.52

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Solution

The fourth proportional to 39,395.48, 54,366.96 and 21,491.52 is: 29,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.48 : 54,366.96 = 21,491.52 : x
  2. Step 2: Convert to fraction form
    39,395.48/54,366.96 = 21,491.52/x
  3. Step 3: Cross multiply
    39,395.48x = 54,366.96 × 21,491.52
  4. Step 4: Simplify right side
    39,395.48x = 1,168,428,608.18
  5. Step 5: Solve for x
    x = 1,168,428,608.18/39,395.48
  6. Step 6: Final answer
    x = 29,658.95

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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.