Home / 20,914.58-31,330.22-15,304.07

Finding the Fourth Proportional to 20,914.58, 31,330.22 and 15,304.07

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Solution

The fourth proportional to 20,914.58, 31,330.22 and 15,304.07 is: 22,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.58 : 31,330.22 = 15,304.07 : x
  2. Step 2: Convert to fraction form
    20,914.58/31,330.22 = 15,304.07/x
  3. Step 3: Cross multiply
    20,914.58x = 31,330.22 × 15,304.07
  4. Step 4: Simplify right side
    20,914.58x = 479,479,881.80
  5. Step 5: Solve for x
    x = 479,479,881.80/20,914.58
  6. Step 6: Final answer
    x = 22,925.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.