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Finding the Fourth Proportional to 22,130.98, 30,525.57 and 13,171.57

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Solution

The fourth proportional to 22,130.98, 30,525.57 and 13,171.57 is: 18,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.98 : 30,525.57 = 13,171.57 : x
  2. Step 2: Convert to fraction form
    22,130.98/30,525.57 = 13,171.57/x
  3. Step 3: Cross multiply
    22,130.98x = 30,525.57 × 13,171.57
  4. Step 4: Simplify right side
    22,130.98x = 402,069,682.04
  5. Step 5: Solve for x
    x = 402,069,682.04/22,130.98
  6. Step 6: Final answer
    x = 18,167.73

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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.