Home / 19,529.20-26,949.72-11,031.72

Finding the Fourth Proportional to 19,529.20, 26,949.72 and 11,031.72

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Solution

The fourth proportional to 19,529.20, 26,949.72 and 11,031.72 is: 15,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,529.20 : 26,949.72 = 11,031.72 : x
  2. Step 2: Convert to fraction form
    19,529.20/26,949.72 = 11,031.72/x
  3. Step 3: Cross multiply
    19,529.20x = 26,949.72 × 11,031.72
  4. Step 4: Simplify right side
    19,529.20x = 297,301,765.12
  5. Step 5: Solve for x
    x = 297,301,765.12/19,529.20
  6. Step 6: Final answer
    x = 15,223.45

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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.