Home / 22,695.88-31,318.56-12,623.76

Finding the Fourth Proportional to 22,695.88, 31,318.56 and 12,623.76

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Solution

The fourth proportional to 22,695.88, 31,318.56 and 12,623.76 is: 17,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.88 : 31,318.56 = 12,623.76 : x
  2. Step 2: Convert to fraction form
    22,695.88/31,318.56 = 12,623.76/x
  3. Step 3: Cross multiply
    22,695.88x = 31,318.56 × 12,623.76
  4. Step 4: Simplify right side
    22,695.88x = 395,357,984.99
  5. Step 5: Solve for x
    x = 395,357,984.99/22,695.88
  6. Step 6: Final answer
    x = 17,419.81

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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.