Home / 20,624.05-28,461.62-11,671.55

Finding the Fourth Proportional to 20,624.05, 28,461.62 and 11,671.55

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Solution

The fourth proportional to 20,624.05, 28,461.62 and 11,671.55 is: 16,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.05 : 28,461.62 = 11,671.55 : x
  2. Step 2: Convert to fraction form
    20,624.05/28,461.62 = 11,671.55/x
  3. Step 3: Cross multiply
    20,624.05x = 28,461.62 × 11,671.55
  4. Step 4: Simplify right side
    20,624.05x = 332,191,228.91
  5. Step 5: Solve for x
    x = 332,191,228.91/20,624.05
  6. Step 6: Final answer
    x = 16,106.98

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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.