Home / 20,722.58-31,084.08-16,588.87

Finding the Fourth Proportional to 20,722.58, 31,084.08 and 16,588.87

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Solution

The fourth proportional to 20,722.58, 31,084.08 and 16,588.87 is: 24,883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.58 : 31,084.08 = 16,588.87 : x
  2. Step 2: Convert to fraction form
    20,722.58/31,084.08 = 16,588.87/x
  3. Step 3: Cross multiply
    20,722.58x = 31,084.08 × 16,588.87
  4. Step 4: Simplify right side
    20,722.58x = 515,649,684.48
  5. Step 5: Solve for x
    x = 515,649,684.48/20,722.58
  6. Step 6: Final answer
    x = 24,883.47

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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.