Home / 21,933.45-32,902.20-8,783.10

Finding the Fourth Proportional to 21,933.45, 32,902.20 and 8,783.10

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Solution

The fourth proportional to 21,933.45, 32,902.20 and 8,783.10 is: 13,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.45 : 32,902.20 = 8,783.10 : x
  2. Step 2: Convert to fraction form
    21,933.45/32,902.20 = 8,783.10/x
  3. Step 3: Cross multiply
    21,933.45x = 32,902.20 × 8,783.10
  4. Step 4: Simplify right side
    21,933.45x = 288,983,312.82
  5. Step 5: Solve for x
    x = 288,983,312.82/21,933.45
  6. Step 6: Final answer
    x = 13,175.46

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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.