Home / 21,531,032.64-29,712,162.78-12,239,617.68

Finding the Fourth Proportional to 21,531,032.64, 29,712,162.78 and 12,239,617.68

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Solution

The fourth proportional to 21,531,032.64, 29,712,162.78 and 12,239,617.68 is: 16,890,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531,032.64 : 29,712,162.78 = 12,239,617.68 : x
  2. Step 2: Convert to fraction form
    21,531,032.64/29,712,162.78 = 12,239,617.68/x
  3. Step 3: Cross multiply
    21,531,032.64x = 29,712,162.78 × 12,239,617.68
  4. Step 4: Simplify right side
    21,531,032.64x = 363,665,512,873,125.94
  5. Step 5: Solve for x
    x = 363,665,512,873,125.94/21,531,032.64
  6. Step 6: Final answer
    x = 16,890,295.93

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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.