Home / 38,477.35-57,719.31-13,515.22

Finding the Fourth Proportional to 38,477.35, 57,719.31 and 13,515.22

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Solution

The fourth proportional to 38,477.35, 57,719.31 and 13,515.22 is: 20,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,477.35 : 57,719.31 = 13,515.22 : x
  2. Step 2: Convert to fraction form
    38,477.35/57,719.31 = 13,515.22/x
  3. Step 3: Cross multiply
    38,477.35x = 57,719.31 × 13,515.22
  4. Step 4: Simplify right side
    38,477.35x = 780,089,172.90
  5. Step 5: Solve for x
    x = 780,089,172.90/38,477.35
  6. Step 6: Final answer
    x = 20,273.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.