Home / 21,432,020.37-29,577,001.23-12,012,982.14

Finding the Fourth Proportional to 21,432,020.37, 29,577,001.23 and 12,012,982.14

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Solution

The fourth proportional to 21,432,020.37, 29,577,001.23 and 12,012,982.14 is: 16,578,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432,020.37 : 29,577,001.23 = 12,012,982.14 : x
  2. Step 2: Convert to fraction form
    21,432,020.37/29,577,001.23 = 12,012,982.14/x
  3. Step 3: Cross multiply
    21,432,020.37x = 29,577,001.23 × 12,012,982.14
  4. Step 4: Simplify right side
    21,432,020.37x = 355,307,987,530,748.06
  5. Step 5: Solve for x
    x = 355,307,987,530,748.06/21,432,020.37
  6. Step 6: Final answer
    x = 16,578,371.12

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1.5x scale

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.