Home / 37,047.12-51,126.48-20,280.12

Finding the Fourth Proportional to 37,047.12, 51,126.48 and 20,280.12

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Solution

The fourth proportional to 37,047.12, 51,126.48 and 20,280.12 is: 27,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,047.12 : 51,126.48 = 20,280.12 : x
  2. Step 2: Convert to fraction form
    37,047.12/51,126.48 = 20,280.12/x
  3. Step 3: Cross multiply
    37,047.12x = 51,126.48 × 20,280.12
  4. Step 4: Simplify right side
    37,047.12x = 1,036,851,149.58
  5. Step 5: Solve for x
    x = 1,036,851,149.58/37,047.12
  6. Step 6: Final answer
    x = 27,987.36

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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.