Home / 38,455.12-57,710.84-19,750.76

Finding the Fourth Proportional to 38,455.12, 57,710.84 and 19,750.76

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Solution

The fourth proportional to 38,455.12, 57,710.84 and 19,750.76 is: 29,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.12 : 57,710.84 = 19,750.76 : x
  2. Step 2: Convert to fraction form
    38,455.12/57,710.84 = 19,750.76/x
  3. Step 3: Cross multiply
    38,455.12x = 57,710.84 × 19,750.76
  4. Step 4: Simplify right side
    38,455.12x = 1,139,832,950.24
  5. Step 5: Solve for x
    x = 1,139,832,950.24/38,455.12
  6. Step 6: Final answer
    x = 29,640.60

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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.