Home / 20,681,338.80-31,022,008.20-17,492,692.80

Finding the Fourth Proportional to 20,681,338.80, 31,022,008.20 and 17,492,692.80

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Solution

The fourth proportional to 20,681,338.80, 31,022,008.20 and 17,492,692.80 is: 26,239,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,338.80 : 31,022,008.20 = 17,492,692.80 : x
  2. Step 2: Convert to fraction form
    20,681,338.80/31,022,008.20 = 17,492,692.80/x
  3. Step 3: Cross multiply
    20,681,338.80x = 31,022,008.20 × 17,492,692.80
  4. Step 4: Simplify right side
    20,681,338.80x = 542,658,459,481,681
  5. Step 5: Solve for x
    x = 542,658,459,481,681/20,681,338.80
  6. Step 6: Final answer
    x = 26,239,039.20

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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.