Home / 39,780.25-59,661.13-11,692.79

Finding the Fourth Proportional to 39,780.25, 59,661.13 and 11,692.79

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Solution

The fourth proportional to 39,780.25, 59,661.13 and 11,692.79 is: 17,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.25 : 59,661.13 = 11,692.79 : x
  2. Step 2: Convert to fraction form
    39,780.25/59,661.13 = 11,692.79/x
  3. Step 3: Cross multiply
    39,780.25x = 59,661.13 × 11,692.79
  4. Step 4: Simplify right side
    39,780.25x = 697,605,015.25
  5. Step 5: Solve for x
    x = 697,605,015.25/39,780.25
  6. Step 6: Final answer
    x = 17,536.47

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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.