Home / 20,646.06-28,491.57-11,693.57

Finding the Fourth Proportional to 20,646.06, 28,491.57 and 11,693.57

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Solution

The fourth proportional to 20,646.06, 28,491.57 and 11,693.57 is: 16,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.06 : 28,491.57 = 11,693.57 : x
  2. Step 2: Convert to fraction form
    20,646.06/28,491.57 = 11,693.57/x
  3. Step 3: Cross multiply
    20,646.06x = 28,491.57 × 11,693.57
  4. Step 4: Simplify right side
    20,646.06x = 333,168,168.20
  5. Step 5: Solve for x
    x = 333,168,168.20/20,646.06
  6. Step 6: Final answer
    x = 16,137.13

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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.