Home / 20,296.07-28,006.14-11,220.20

Finding the Fourth Proportional to 20,296.07, 28,006.14 and 11,220.20

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Solution

The fourth proportional to 20,296.07, 28,006.14 and 11,220.20 is: 15,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.07 : 28,006.14 = 11,220.20 : x
  2. Step 2: Convert to fraction form
    20,296.07/28,006.14 = 11,220.20/x
  3. Step 3: Cross multiply
    20,296.07x = 28,006.14 × 11,220.20
  4. Step 4: Simplify right side
    20,296.07x = 314,234,492.03
  5. Step 5: Solve for x
    x = 314,234,492.03/20,296.07
  6. Step 6: Final answer
    x = 15,482.53

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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.