Home / 19,881.20-27,503.88-16,337.36

Finding the Fourth Proportional to 19,881.20, 27,503.88 and 16,337.36

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Solution

The fourth proportional to 19,881.20, 27,503.88 and 16,337.36 is: 22,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.20 : 27,503.88 = 16,337.36 : x
  2. Step 2: Convert to fraction form
    19,881.20/27,503.88 = 16,337.36/x
  3. Step 3: Cross multiply
    19,881.20x = 27,503.88 × 16,337.36
  4. Step 4: Simplify right side
    19,881.20x = 449,340,788.96
  5. Step 5: Solve for x
    x = 449,340,788.96/19,881.20
  6. Step 6: Final answer
    x = 22,601.29

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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.