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Finding the Fourth Proportional to 20,356.52, 30,538.08 and 7,206.03

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Solution

The fourth proportional to 20,356.52, 30,538.08 and 7,206.03 is: 10,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.52 : 30,538.08 = 7,206.03 : x
  2. Step 2: Convert to fraction form
    20,356.52/30,538.08 = 7,206.03/x
  3. Step 3: Cross multiply
    20,356.52x = 30,538.08 × 7,206.03
  4. Step 4: Simplify right side
    20,356.52x = 220,058,320.62
  5. Step 5: Solve for x
    x = 220,058,320.62/20,356.52
  6. Step 6: Final answer
    x = 10,810.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.