Home / 38,173.71-52,679.85-21,178.29

Finding the Fourth Proportional to 38,173.71, 52,679.85 and 21,178.29

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Solution

The fourth proportional to 38,173.71, 52,679.85 and 21,178.29 is: 29,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,173.71 : 52,679.85 = 21,178.29 : x
  2. Step 2: Convert to fraction form
    38,173.71/52,679.85 = 21,178.29/x
  3. Step 3: Cross multiply
    38,173.71x = 52,679.85 × 21,178.29
  4. Step 4: Simplify right side
    38,173.71x = 1,115,669,140.46
  5. Step 5: Solve for x
    x = 1,115,669,140.46/38,173.71
  6. Step 6: Final answer
    x = 29,226.11

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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.