Home / 39,416.60-54,392.91-21,511.46

Finding the Fourth Proportional to 39,416.60, 54,392.91 and 21,511.46

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Solution

The fourth proportional to 39,416.60, 54,392.91 and 21,511.46 is: 29,684.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,416.60 : 54,392.91 = 21,511.46 : x
  2. Step 2: Convert to fraction form
    39,416.60/54,392.91 = 21,511.46/x
  3. Step 3: Cross multiply
    39,416.60x = 54,392.91 × 21,511.46
  4. Step 4: Simplify right side
    39,416.60x = 1,170,070,907.75
  5. Step 5: Solve for x
    x = 1,170,070,907.75/39,416.60
  6. Step 6: Final answer
    x = 29,684.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.