Home / 21,320,281.71-29,421,988.77-11,530,725.92

Finding the Fourth Proportional to 21,320,281.71, 29,421,988.77 and 11,530,725.92

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Solution

The fourth proportional to 21,320,281.71, 29,421,988.77 and 11,530,725.92 is: 15,912,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,281.71 : 29,421,988.77 = 11,530,725.92 : x
  2. Step 2: Convert to fraction form
    21,320,281.71/29,421,988.77 = 11,530,725.92/x
  3. Step 3: Cross multiply
    21,320,281.71x = 29,421,988.77 × 11,530,725.92
  4. Step 4: Simplify right side
    21,320,281.71x = 339,256,888,381,077.94
  5. Step 5: Solve for x
    x = 339,256,888,381,077.94/21,320,281.71
  6. Step 6: Final answer
    x = 15,912,401.77

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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.