Home / 20,962.13-28,927.68-11,530.63

Finding the Fourth Proportional to 20,962.13, 28,927.68 and 11,530.63

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Solution

The fourth proportional to 20,962.13, 28,927.68 and 11,530.63 is: 15,912.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.13 : 28,927.68 = 11,530.63 : x
  2. Step 2: Convert to fraction form
    20,962.13/28,927.68 = 11,530.63/x
  3. Step 3: Cross multiply
    20,962.13x = 28,927.68 × 11,530.63
  4. Step 4: Simplify right side
    20,962.13x = 333,554,230.20
  5. Step 5: Solve for x
    x = 333,554,230.20/20,962.13
  6. Step 6: Final answer
    x = 15,912.23

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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.