Home / 42,277.01-63,396.41-12,689.06

Finding the Fourth Proportional to 42,277.01, 63,396.41 and 12,689.06

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Solution

The fourth proportional to 42,277.01, 63,396.41 and 12,689.06 is: 19,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,277.01 : 63,396.41 = 12,689.06 : x
  2. Step 2: Convert to fraction form
    42,277.01/63,396.41 = 12,689.06/x
  3. Step 3: Cross multiply
    42,277.01x = 63,396.41 × 12,689.06
  4. Step 4: Simplify right side
    42,277.01x = 804,440,469.85
  5. Step 5: Solve for x
    x = 804,440,469.85/42,277.01
  6. Step 6: Final answer
    x = 19,027.85

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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.