Home / 21,390,512.64-29,517,055.20-12,569,029.44

Finding the Fourth Proportional to 21,390,512.64, 29,517,055.20 and 12,569,029.44

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Solution

The fourth proportional to 21,390,512.64, 29,517,055.20 and 12,569,029.44 is: 17,344,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,512.64 : 29,517,055.20 = 12,569,029.44 : x
  2. Step 2: Convert to fraction form
    21,390,512.64/29,517,055.20 = 12,569,029.44/x
  3. Step 3: Cross multiply
    21,390,512.64x = 29,517,055.20 × 12,569,029.44
  4. Step 4: Simplify right side
    21,390,512.64x = 371,000,735,790,905.06
  5. Step 5: Solve for x
    x = 371,000,735,790,905.06/21,390,512.64
  6. Step 6: Final answer
    x = 17,344,172.25

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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.