Home / 37,805.18-52,171.34-20,811.12

Finding the Fourth Proportional to 37,805.18, 52,171.34 and 20,811.12

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Solution

The fourth proportional to 37,805.18, 52,171.34 and 20,811.12 is: 28,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,805.18 : 52,171.34 = 20,811.12 : x
  2. Step 2: Convert to fraction form
    37,805.18/52,171.34 = 20,811.12/x
  3. Step 3: Cross multiply
    37,805.18x = 52,171.34 × 20,811.12
  4. Step 4: Simplify right side
    37,805.18x = 1,085,743,913.25
  5. Step 5: Solve for x
    x = 1,085,743,913.25/37,805.18
  6. Step 6: Final answer
    x = 28,719.45

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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.