Home / 38,137.60-52,630.12-21,142.11

Finding the Fourth Proportional to 38,137.60, 52,630.12 and 21,142.11

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Solution

The fourth proportional to 38,137.60, 52,630.12 and 21,142.11 is: 29,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137.60 : 52,630.12 = 21,142.11 : x
  2. Step 2: Convert to fraction form
    38,137.60/52,630.12 = 21,142.11/x
  3. Step 3: Cross multiply
    38,137.60x = 52,630.12 × 21,142.11
  4. Step 4: Simplify right side
    38,137.60x = 1,112,712,010.14
  5. Step 5: Solve for x
    x = 1,112,712,010.14/38,137.60
  6. Step 6: Final answer
    x = 29,176.25

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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.