Home / 39,190.84-58,764.12-12,888.52

Finding the Fourth Proportional to 39,190.84, 58,764.12 and 12,888.52

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Solution

The fourth proportional to 39,190.84, 58,764.12 and 12,888.52 is: 19,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.84 : 58,764.12 = 12,888.52 : x
  2. Step 2: Convert to fraction form
    39,190.84/58,764.12 = 12,888.52/x
  3. Step 3: Cross multiply
    39,190.84x = 58,764.12 × 12,888.52
  4. Step 4: Simplify right side
    39,190.84x = 757,382,535.90
  5. Step 5: Solve for x
    x = 757,382,535.90/39,190.84
  6. Step 6: Final answer
    x = 19,325.50

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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.