Home / 20,215.44-30,338.76-14,018.76

Finding the Fourth Proportional to 20,215.44, 30,338.76 and 14,018.76

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Solution

The fourth proportional to 20,215.44, 30,338.76 and 14,018.76 is: 21,038.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.44 : 30,338.76 = 14,018.76 : x
  2. Step 2: Convert to fraction form
    20,215.44/30,338.76 = 14,018.76/x
  3. Step 3: Cross multiply
    20,215.44x = 30,338.76 × 14,018.76
  4. Step 4: Simplify right side
    20,215.44x = 425,311,795.14
  5. Step 5: Solve for x
    x = 425,311,795.14/20,215.44
  6. Step 6: Final answer
    x = 21,038.96

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1.5x scale

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.