Home / 38,146.86-57,222.81-13,189.32

Finding the Fourth Proportional to 38,146.86, 57,222.81 and 13,189.32

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Solution

The fourth proportional to 38,146.86, 57,222.81 and 13,189.32 is: 19,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.86 : 57,222.81 = 13,189.32 : x
  2. Step 2: Convert to fraction form
    38,146.86/57,222.81 = 13,189.32/x
  3. Step 3: Cross multiply
    38,146.86x = 57,222.81 × 13,189.32
  4. Step 4: Simplify right side
    38,146.86x = 754,729,952.39
  5. Step 5: Solve for x
    x = 754,729,952.39/38,146.86
  6. Step 6: Final answer
    x = 19,784.85

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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.