Home / 15,031.53-22,421.99-13,770.09

Finding the Fourth Proportional to 15,031.53, 22,421.99 and 13,770.09

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Solution

The fourth proportional to 15,031.53, 22,421.99 and 13,770.09 is: 20,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.53 : 22,421.99 = 13,770.09 : x
  2. Step 2: Convert to fraction form
    15,031.53/22,421.99 = 13,770.09/x
  3. Step 3: Cross multiply
    15,031.53x = 22,421.99 × 13,770.09
  4. Step 4: Simplify right side
    15,031.53x = 308,752,854.70
  5. Step 5: Solve for x
    x = 308,752,854.70/15,031.53
  6. Step 6: Final answer
    x = 20,540.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.