Home / 38,440.95-57,661.08-12,145.69

Finding the Fourth Proportional to 38,440.95, 57,661.08 and 12,145.69

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Solution

The fourth proportional to 38,440.95, 57,661.08 and 12,145.69 is: 18,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.95 : 57,661.08 = 12,145.69 : x
  2. Step 2: Convert to fraction form
    38,440.95/57,661.08 = 12,145.69/x
  3. Step 3: Cross multiply
    38,440.95x = 57,661.08 × 12,145.69
  4. Step 4: Simplify right side
    38,440.95x = 700,333,542.02
  5. Step 5: Solve for x
    x = 700,333,542.02/38,440.95
  6. Step 6: Final answer
    x = 18,218.42

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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.