Home / 20,697,692.24-28,355,939.56-19,921,948.32

Finding the Fourth Proportional to 20,697,692.24, 28,355,939.56 and 19,921,948.32

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Solution

The fourth proportional to 20,697,692.24, 28,355,939.56 and 19,921,948.32 is: 27,293,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,692.24 : 28,355,939.56 = 19,921,948.32 : x
  2. Step 2: Convert to fraction form
    20,697,692.24/28,355,939.56 = 19,921,948.32/x
  3. Step 3: Cross multiply
    20,697,692.24x = 28,355,939.56 × 19,921,948.32
  4. Step 4: Simplify right side
    20,697,692.24x = 564,905,562,479,363.50
  5. Step 5: Solve for x
    x = 564,905,562,479,363.50/20,697,692.24
  6. Step 6: Final answer
    x = 27,293,166.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.