Home / 20,892.56-28,832.10-11,461.10

Finding the Fourth Proportional to 20,892.56, 28,832.10 and 11,461.10

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Solution

The fourth proportional to 20,892.56, 28,832.10 and 11,461.10 is: 15,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.56 : 28,832.10 = 11,461.10 : x
  2. Step 2: Convert to fraction form
    20,892.56/28,832.10 = 11,461.10/x
  3. Step 3: Cross multiply
    20,892.56x = 28,832.10 × 11,461.10
  4. Step 4: Simplify right side
    20,892.56x = 330,447,581.31
  5. Step 5: Solve for x
    x = 330,447,581.31/20,892.56
  6. Step 6: Final answer
    x = 15,816.52

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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.