Home / 38,143.84-52,639.44-21,147.04

Finding the Fourth Proportional to 38,143.84, 52,639.44 and 21,147.04

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Solution

The fourth proportional to 38,143.84, 52,639.44 and 21,147.04 is: 29,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.84 : 52,639.44 = 21,147.04 : x
  2. Step 2: Convert to fraction form
    38,143.84/52,639.44 = 21,147.04/x
  3. Step 3: Cross multiply
    38,143.84x = 52,639.44 × 21,147.04
  4. Step 4: Simplify right side
    38,143.84x = 1,113,168,343.26
  5. Step 5: Solve for x
    x = 1,113,168,343.26/38,143.84
  6. Step 6: Final answer
    x = 29,183.44

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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.