Home / 20,999.02-31,450.92-16,281.22

Finding the Fourth Proportional to 20,999.02, 31,450.92 and 16,281.22

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Solution

The fourth proportional to 20,999.02, 31,450.92 and 16,281.22 is: 24,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,999.02 : 31,450.92 = 16,281.22 : x
  2. Step 2: Convert to fraction form
    20,999.02/31,450.92 = 16,281.22/x
  3. Step 3: Cross multiply
    20,999.02x = 31,450.92 × 16,281.22
  4. Step 4: Simplify right side
    20,999.02x = 512,059,347.72
  5. Step 5: Solve for x
    x = 512,059,347.72/20,999.02
  6. Step 6: Final answer
    x = 24,384.92

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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.