Home / 38,206.81-57,303.94-10,128.60

Finding the Fourth Proportional to 38,206.81, 57,303.94 and 10,128.60

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Solution

The fourth proportional to 38,206.81, 57,303.94 and 10,128.60 is: 15,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,206.81 : 57,303.94 = 10,128.60 : x
  2. Step 2: Convert to fraction form
    38,206.81/57,303.94 = 10,128.60/x
  3. Step 3: Cross multiply
    38,206.81x = 57,303.94 × 10,128.60
  4. Step 4: Simplify right side
    38,206.81x = 580,408,686.68
  5. Step 5: Solve for x
    x = 580,408,686.68/38,206.81
  6. Step 6: Final answer
    x = 15,191.24

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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.