Home / 21,032,165.72-31,603,731.57-11,323,956.53

Finding the Fourth Proportional to 21,032,165.72, 31,603,731.57 and 11,323,956.53

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Solution

The fourth proportional to 21,032,165.72, 31,603,731.57 and 11,323,956.53 is: 17,015,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,165.72 : 31,603,731.57 = 11,323,956.53 : x
  2. Step 2: Convert to fraction form
    21,032,165.72/31,603,731.57 = 11,323,956.53/x
  3. Step 3: Cross multiply
    21,032,165.72x = 31,603,731.57 × 11,323,956.53
  4. Step 4: Simplify right side
    21,032,165.72x = 357,879,282,555,517.25
  5. Step 5: Solve for x
    x = 357,879,282,555,517.25/21,032,165.72
  6. Step 6: Final answer
    x = 17,015,807.47

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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.