Home / 22,122.86-30,527.52-13,172.54

Finding the Fourth Proportional to 22,122.86, 30,527.52 and 13,172.54

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Solution

The fourth proportional to 22,122.86, 30,527.52 and 13,172.54 is: 18,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.86 : 30,527.52 = 13,172.54 : x
  2. Step 2: Convert to fraction form
    22,122.86/30,527.52 = 13,172.54/x
  3. Step 3: Cross multiply
    22,122.86x = 30,527.52 × 13,172.54
  4. Step 4: Simplify right side
    22,122.86x = 402,124,978.30
  5. Step 5: Solve for x
    x = 402,124,978.30/22,122.86
  6. Step 6: Final answer
    x = 18,176.90

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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.