Home / 19,031.60-28,579.80-14,106.80

Finding the Fourth Proportional to 19,031.60, 28,579.80 and 14,106.80

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Solution

The fourth proportional to 19,031.60, 28,579.80 and 14,106.80 is: 21,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.60 : 28,579.80 = 14,106.80 : x
  2. Step 2: Convert to fraction form
    19,031.60/28,579.80 = 14,106.80/x
  3. Step 3: Cross multiply
    19,031.60x = 28,579.80 × 14,106.80
  4. Step 4: Simplify right side
    19,031.60x = 403,169,522.64
  5. Step 5: Solve for x
    x = 403,169,522.64/19,031.60
  6. Step 6: Final answer
    x = 21,184.22

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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.