Home / 38,155.70-57,233.28-11,860.40

Finding the Fourth Proportional to 38,155.70, 57,233.28 and 11,860.40

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Solution

The fourth proportional to 38,155.70, 57,233.28 and 11,860.40 is: 17,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.70 : 57,233.28 = 11,860.40 : x
  2. Step 2: Convert to fraction form
    38,155.70/57,233.28 = 11,860.40/x
  3. Step 3: Cross multiply
    38,155.70x = 57,233.28 × 11,860.40
  4. Step 4: Simplify right side
    38,155.70x = 678,809,594.11
  5. Step 5: Solve for x
    x = 678,809,594.11/38,155.70
  6. Step 6: Final answer
    x = 17,790.52

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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.