Home / 20,692.32-31,030.32-8,997.52

Finding the Fourth Proportional to 20,692.32, 31,030.32 and 8,997.52

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Solution

The fourth proportional to 20,692.32, 31,030.32 and 8,997.52 is: 13,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.32 : 31,030.32 = 8,997.52 : x
  2. Step 2: Convert to fraction form
    20,692.32/31,030.32 = 8,997.52/x
  3. Step 3: Cross multiply
    20,692.32x = 31,030.32 × 8,997.52
  4. Step 4: Simplify right side
    20,692.32x = 279,195,924.81
  5. Step 5: Solve for x
    x = 279,195,924.81/20,692.32
  6. Step 6: Final answer
    x = 13,492.73

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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.