Home / 21,231,092.40-31,846,638.60-12,707,041.20

Finding the Fourth Proportional to 21,231,092.40, 31,846,638.60 and 12,707,041.20

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Solution

The fourth proportional to 21,231,092.40, 31,846,638.60 and 12,707,041.20 is: 19,060,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231,092.40 : 31,846,638.60 = 12,707,041.20 : x
  2. Step 2: Convert to fraction form
    21,231,092.40/31,846,638.60 = 12,707,041.20/x
  3. Step 3: Cross multiply
    21,231,092.40x = 31,846,638.60 × 12,707,041.20
  4. Step 4: Simplify right side
    21,231,092.40x = 404,676,548,771,710.31
  5. Step 5: Solve for x
    x = 404,676,548,771,710.31/21,231,092.40
  6. Step 6: Final answer
    x = 19,060,561.80

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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.