Home / 20,570.46-28,385.62-11,618.84

Finding the Fourth Proportional to 20,570.46, 28,385.62 and 11,618.84

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Solution

The fourth proportional to 20,570.46, 28,385.62 and 11,618.84 is: 16,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.46 : 28,385.62 = 11,618.84 : x
  2. Step 2: Convert to fraction form
    20,570.46/28,385.62 = 11,618.84/x
  3. Step 3: Cross multiply
    20,570.46x = 28,385.62 × 11,618.84
  4. Step 4: Simplify right side
    20,570.46x = 329,807,977.08
  5. Step 5: Solve for x
    x = 329,807,977.08/20,570.46
  6. Step 6: Final answer
    x = 16,033.09

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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.