Home / 14,813.60-22,220.40-13,687.20

Finding the Fourth Proportional to 14,813.60, 22,220.40 and 13,687.20

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Solution

The fourth proportional to 14,813.60, 22,220.40 and 13,687.20 is: 20,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,813.60 : 22,220.40 = 13,687.20 : x
  2. Step 2: Convert to fraction form
    14,813.60/22,220.40 = 13,687.20/x
  3. Step 3: Cross multiply
    14,813.60x = 22,220.40 × 13,687.20
  4. Step 4: Simplify right side
    14,813.60x = 304,135,058.88
  5. Step 5: Solve for x
    x = 304,135,058.88/14,813.60
  6. Step 6: Final answer
    x = 20,530.80

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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.