Home / 22,660.86-31,270.54-12,589.12

Finding the Fourth Proportional to 22,660.86, 31,270.54 and 12,589.12

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Solution

The fourth proportional to 22,660.86, 31,270.54 and 12,589.12 is: 17,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.86 : 31,270.54 = 12,589.12 : x
  2. Step 2: Convert to fraction form
    22,660.86/31,270.54 = 12,589.12/x
  3. Step 3: Cross multiply
    22,660.86x = 31,270.54 × 12,589.12
  4. Step 4: Simplify right side
    22,660.86x = 393,668,361.23
  5. Step 5: Solve for x
    x = 393,668,361.23/22,660.86
  6. Step 6: Final answer
    x = 17,372.17

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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.