Home / 21,731,817.10-29,983,367.52-13,026,813.52

Finding the Fourth Proportional to 21,731,817.10, 29,983,367.52 and 13,026,813.52

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Solution

The fourth proportional to 21,731,817.10, 29,983,367.52 and 13,026,813.52 is: 17,973,082.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,817.10 : 29,983,367.52 = 13,026,813.52 : x
  2. Step 2: Convert to fraction form
    21,731,817.10/29,983,367.52 = 13,026,813.52/x
  3. Step 3: Cross multiply
    21,731,817.10x = 29,983,367.52 × 13,026,813.52
  4. Step 4: Simplify right side
    21,731,817.10x = 390,587,737,384,664.88
  5. Step 5: Solve for x
    x = 390,587,737,384,664.88/21,731,817.10
  6. Step 6: Final answer
    x = 17,973,082.31

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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.