Home / 37,185.18-51,314.91-20,418.06

Finding the Fourth Proportional to 37,185.18, 51,314.91 and 20,418.06

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Solution

The fourth proportional to 37,185.18, 51,314.91 and 20,418.06 is: 28,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.18 : 51,314.91 = 20,418.06 : x
  2. Step 2: Convert to fraction form
    37,185.18/51,314.91 = 20,418.06/x
  3. Step 3: Cross multiply
    37,185.18x = 51,314.91 × 20,418.06
  4. Step 4: Simplify right side
    37,185.18x = 1,047,750,911.27
  5. Step 5: Solve for x
    x = 1,047,750,911.27/37,185.18
  6. Step 6: Final answer
    x = 28,176.57

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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.