Home / 27,128.80-40,628.40-16,631.20

Finding the Fourth Proportional to 27,128.80, 40,628.40 and 16,631.20

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Solution

The fourth proportional to 27,128.80, 40,628.40 and 16,631.20 is: 24,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.80 : 40,628.40 = 16,631.20 : x
  2. Step 2: Convert to fraction form
    27,128.80/40,628.40 = 16,631.20/x
  3. Step 3: Cross multiply
    27,128.80x = 40,628.40 × 16,631.20
  4. Step 4: Simplify right side
    27,128.80x = 675,699,046.08
  5. Step 5: Solve for x
    x = 675,699,046.08/27,128.80
  6. Step 6: Final answer
    x = 24,907.07

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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.