Home / 22,181.18-30,602.76-15,808.80

Finding the Fourth Proportional to 22,181.18, 30,602.76 and 15,808.80

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Solution

The fourth proportional to 22,181.18, 30,602.76 and 15,808.80 is: 21,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.18 : 30,602.76 = 15,808.80 : x
  2. Step 2: Convert to fraction form
    22,181.18/30,602.76 = 15,808.80/x
  3. Step 3: Cross multiply
    22,181.18x = 30,602.76 × 15,808.80
  4. Step 4: Simplify right side
    22,181.18x = 483,792,912.29
  5. Step 5: Solve for x
    x = 483,792,912.29/22,181.18
  6. Step 6: Final answer
    x = 21,810.96

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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.