Home / 20,821,254.72-28,733,325.12-11,653,895.04

Finding the Fourth Proportional to 20,821,254.72, 28,733,325.12 and 11,653,895.04

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Solution

The fourth proportional to 20,821,254.72, 28,733,325.12 and 11,653,895.04 is: 16,082,371.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,254.72 : 28,733,325.12 = 11,653,895.04 : x
  2. Step 2: Convert to fraction form
    20,821,254.72/28,733,325.12 = 11,653,895.04/x
  3. Step 3: Cross multiply
    20,821,254.72x = 28,733,325.12 × 11,653,895.04
  4. Step 4: Simplify right side
    20,821,254.72x = 334,855,155,098,675.38
  5. Step 5: Solve for x
    x = 334,855,155,098,675.38/20,821,254.72
  6. Step 6: Final answer
    x = 16,082,371.58

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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.