Home / 38,102.76-52,580.58-21,107.72

Finding the Fourth Proportional to 38,102.76, 52,580.58 and 21,107.72

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Solution

The fourth proportional to 38,102.76, 52,580.58 and 21,107.72 is: 29,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,102.76 : 52,580.58 = 21,107.72 : x
  2. Step 2: Convert to fraction form
    38,102.76/52,580.58 = 21,107.72/x
  3. Step 3: Cross multiply
    38,102.76x = 52,580.58 × 21,107.72
  4. Step 4: Simplify right side
    38,102.76x = 1,109,856,160.08
  5. Step 5: Solve for x
    x = 1,109,856,160.08/38,102.76
  6. Step 6: Final answer
    x = 29,127.97

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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.