Home / 39,279.59-58,928.60-12,984.33

Finding the Fourth Proportional to 39,279.59, 58,928.60 and 12,984.33

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Solution

The fourth proportional to 39,279.59, 58,928.60 and 12,984.33 is: 19,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.59 : 58,928.60 = 12,984.33 : x
  2. Step 2: Convert to fraction form
    39,279.59/58,928.60 = 12,984.33/x
  3. Step 3: Cross multiply
    39,279.59x = 58,928.60 × 12,984.33
  4. Step 4: Simplify right side
    39,279.59x = 765,148,421.30
  5. Step 5: Solve for x
    x = 765,148,421.30/39,279.59
  6. Step 6: Final answer
    x = 19,479.54

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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.