Home / 20,624.42-28,461.72-11,192.98

Finding the Fourth Proportional to 20,624.42, 28,461.72 and 11,192.98

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Solution

The fourth proportional to 20,624.42, 28,461.72 and 11,192.98 is: 15,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.42 : 28,461.72 = 11,192.98 : x
  2. Step 2: Convert to fraction form
    20,624.42/28,461.72 = 11,192.98/x
  3. Step 3: Cross multiply
    20,624.42x = 28,461.72 × 11,192.98
  4. Step 4: Simplify right side
    20,624.42x = 318,571,462.73
  5. Step 5: Solve for x
    x = 318,571,462.73/20,624.42
  6. Step 6: Final answer
    x = 15,446.32

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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.