Home / 20,872.18-31,259.06-16,154.41

Finding the Fourth Proportional to 20,872.18, 31,259.06 and 16,154.41

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Solution

The fourth proportional to 20,872.18, 31,259.06 and 16,154.41 is: 24,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872.18 : 31,259.06 = 16,154.41 : x
  2. Step 2: Convert to fraction form
    20,872.18/31,259.06 = 16,154.41/x
  3. Step 3: Cross multiply
    20,872.18x = 31,259.06 × 16,154.41
  4. Step 4: Simplify right side
    20,872.18x = 504,971,810.51
  5. Step 5: Solve for x
    x = 504,971,810.51/20,872.18
  6. Step 6: Final answer
    x = 24,193.53

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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.