Home / 39,279.21-58,928.04-12,983.95

Finding the Fourth Proportional to 39,279.21, 58,928.04 and 12,983.95

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Solution

The fourth proportional to 39,279.21, 58,928.04 and 12,983.95 is: 19,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.21 : 58,928.04 = 12,983.95 : x
  2. Step 2: Convert to fraction form
    39,279.21/58,928.04 = 12,983.95/x
  3. Step 3: Cross multiply
    39,279.21x = 58,928.04 × 12,983.95
  4. Step 4: Simplify right side
    39,279.21x = 765,118,798.62
  5. Step 5: Solve for x
    x = 765,118,798.62/39,279.21
  6. Step 6: Final answer
    x = 19,478.98

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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.