Home / 38,276.16-52,824-21,511.68

Finding the Fourth Proportional to 38,276.16, 52,824 and 21,511.68

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Solution

The fourth proportional to 38,276.16, 52,824 and 21,511.68 is: 29,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.16 : 52,824 = 21,511.68 : x
  2. Step 2: Convert to fraction form
    38,276.16/52,824 = 21,511.68/x
  3. Step 3: Cross multiply
    38,276.16x = 52,824 × 21,511.68
  4. Step 4: Simplify right side
    38,276.16x = 1,136,332,984.32
  5. Step 5: Solve for x
    x = 1,136,332,984.32/38,276.16
  6. Step 6: Final answer
    x = 29,687.75

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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.