Home / 15,011.20-20,738.56-14,291.20

Finding the Fourth Proportional to 15,011.20, 20,738.56 and 14,291.20

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Solution

The fourth proportional to 15,011.20, 20,738.56 and 14,291.20 is: 19,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.20 : 20,738.56 = 14,291.20 : x
  2. Step 2: Convert to fraction form
    15,011.20/20,738.56 = 14,291.20/x
  3. Step 3: Cross multiply
    15,011.20x = 20,738.56 × 14,291.20
  4. Step 4: Simplify right side
    15,011.20x = 296,378,908.67
  5. Step 5: Solve for x
    x = 296,378,908.67/15,011.20
  6. Step 6: Final answer
    x = 19,743.85

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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.