Home / 20,652.69-28,500.61-11,700.17

Finding the Fourth Proportional to 20,652.69, 28,500.61 and 11,700.17

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Solution

The fourth proportional to 20,652.69, 28,500.61 and 11,700.17 is: 16,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.69 : 28,500.61 = 11,700.17 : x
  2. Step 2: Convert to fraction form
    20,652.69/28,500.61 = 11,700.17/x
  3. Step 3: Cross multiply
    20,652.69x = 28,500.61 × 11,700.17
  4. Step 4: Simplify right side
    20,652.69x = 333,462,097.23
  5. Step 5: Solve for x
    x = 333,462,097.23/20,652.69
  6. Step 6: Final answer
    x = 16,146.18

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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.