Home / 22,660.42-31,270.47-12,589.48

Finding the Fourth Proportional to 22,660.42, 31,270.47 and 12,589.48

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Solution

The fourth proportional to 22,660.42, 31,270.47 and 12,589.48 is: 17,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.42 : 31,270.47 = 12,589.48 : x
  2. Step 2: Convert to fraction form
    22,660.42/31,270.47 = 12,589.48/x
  3. Step 3: Cross multiply
    22,660.42x = 31,270.47 × 12,589.48
  4. Step 4: Simplify right side
    22,660.42x = 393,678,956.66
  5. Step 5: Solve for x
    x = 393,678,956.66/22,660.42
  6. Step 6: Final answer
    x = 17,372.98

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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.