Home / 37,671.72-51,987.78-20,906.28

Finding the Fourth Proportional to 37,671.72, 51,987.78 and 20,906.28

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Solution

The fourth proportional to 37,671.72, 51,987.78 and 20,906.28 is: 28,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,671.72 : 51,987.78 = 20,906.28 : x
  2. Step 2: Convert to fraction form
    37,671.72/51,987.78 = 20,906.28/x
  3. Step 3: Cross multiply
    37,671.72x = 51,987.78 × 20,906.28
  4. Step 4: Simplify right side
    37,671.72x = 1,086,871,085.26
  5. Step 5: Solve for x
    x = 1,086,871,085.26/37,671.72
  6. Step 6: Final answer
    x = 28,851.11

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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.