Home / 22,661.55-31,272.48-12,589.56

Finding the Fourth Proportional to 22,661.55, 31,272.48 and 12,589.56

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Solution

The fourth proportional to 22,661.55, 31,272.48 and 12,589.56 is: 17,373.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.55 : 31,272.48 = 12,589.56 : x
  2. Step 2: Convert to fraction form
    22,661.55/31,272.48 = 12,589.56/x
  3. Step 3: Cross multiply
    22,661.55x = 31,272.48 × 12,589.56
  4. Step 4: Simplify right side
    22,661.55x = 393,706,763.31
  5. Step 5: Solve for x
    x = 393,706,763.31/22,661.55
  6. Step 6: Final answer
    x = 17,373.34

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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.