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Finding the Fourth Proportional to 20,172.41, 30,259.43 and 7,026.11

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Solution

The fourth proportional to 20,172.41, 30,259.43 and 7,026.11 is: 10,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.41 : 30,259.43 = 7,026.11 : x
  2. Step 2: Convert to fraction form
    20,172.41/30,259.43 = 7,026.11/x
  3. Step 3: Cross multiply
    20,172.41x = 30,259.43 × 7,026.11
  4. Step 4: Simplify right side
    20,172.41x = 212,606,048.59
  5. Step 5: Solve for x
    x = 212,606,048.59/20,172.41
  6. Step 6: Final answer
    x = 10,539.45

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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.