Home / 20,317.22-28,036.45-11,363.18

Finding the Fourth Proportional to 20,317.22, 28,036.45 and 11,363.18

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Solution

The fourth proportional to 20,317.22, 28,036.45 and 11,363.18 is: 15,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.22 : 28,036.45 = 11,363.18 : x
  2. Step 2: Convert to fraction form
    20,317.22/28,036.45 = 11,363.18/x
  3. Step 3: Cross multiply
    20,317.22x = 28,036.45 × 11,363.18
  4. Step 4: Simplify right side
    20,317.22x = 318,583,059.32
  5. Step 5: Solve for x
    x = 318,583,059.32/20,317.22
  6. Step 6: Final answer
    x = 15,680.44

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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.