Home / 39,690.38-59,529.09-11,603.77

Finding the Fourth Proportional to 39,690.38, 59,529.09 and 11,603.77

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Solution

The fourth proportional to 39,690.38, 59,529.09 and 11,603.77 is: 17,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.38 : 59,529.09 = 11,603.77 : x
  2. Step 2: Convert to fraction form
    39,690.38/59,529.09 = 11,603.77/x
  3. Step 3: Cross multiply
    39,690.38x = 59,529.09 × 11,603.77
  4. Step 4: Simplify right side
    39,690.38x = 690,761,868.67
  5. Step 5: Solve for x
    x = 690,761,868.67/39,690.38
  6. Step 6: Final answer
    x = 17,403.76

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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.