Home / 22,002.79-30,365.45-12,571.15

Finding the Fourth Proportional to 22,002.79, 30,365.45 and 12,571.15

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Solution

The fourth proportional to 22,002.79, 30,365.45 and 12,571.15 is: 17,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.79 : 30,365.45 = 12,571.15 : x
  2. Step 2: Convert to fraction form
    22,002.79/30,365.45 = 12,571.15/x
  3. Step 3: Cross multiply
    22,002.79x = 30,365.45 × 12,571.15
  4. Step 4: Simplify right side
    22,002.79x = 381,728,506.37
  5. Step 5: Solve for x
    x = 381,728,506.37/22,002.79
  6. Step 6: Final answer
    x = 17,349.10

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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.