Home / 38,206.25-57,303.08-10,128.05

Finding the Fourth Proportional to 38,206.25, 57,303.08 and 10,128.05

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Solution

The fourth proportional to 38,206.25, 57,303.08 and 10,128.05 is: 15,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,206.25 : 57,303.08 = 10,128.05 : x
  2. Step 2: Convert to fraction form
    38,206.25/57,303.08 = 10,128.05/x
  3. Step 3: Cross multiply
    38,206.25x = 57,303.08 × 10,128.05
  4. Step 4: Simplify right side
    38,206.25x = 580,368,459.39
  5. Step 5: Solve for x
    x = 580,368,459.39/38,206.25
  6. Step 6: Final answer
    x = 15,190.41

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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.