Home / 19,477.20-29,167.20-12,867.60

Finding the Fourth Proportional to 19,477.20, 29,167.20 and 12,867.60

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Solution

The fourth proportional to 19,477.20, 29,167.20 and 12,867.60 is: 19,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,477.20 : 29,167.20 = 12,867.60 : x
  2. Step 2: Convert to fraction form
    19,477.20/29,167.20 = 12,867.60/x
  3. Step 3: Cross multiply
    19,477.20x = 29,167.20 × 12,867.60
  4. Step 4: Simplify right side
    19,477.20x = 375,311,862.72
  5. Step 5: Solve for x
    x = 375,311,862.72/19,477.20
  6. Step 6: Final answer
    x = 19,269.29

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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.