Home / 21,207,496.28-31,781,586.04-11,471,081.94

Finding the Fourth Proportional to 21,207,496.28, 31,781,586.04 and 11,471,081.94

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Solution

The fourth proportional to 21,207,496.28, 31,781,586.04 and 11,471,081.94 is: 17,190,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207,496.28 : 31,781,586.04 = 11,471,081.94 : x
  2. Step 2: Convert to fraction form
    21,207,496.28/31,781,586.04 = 11,471,081.94/x
  3. Step 3: Cross multiply
    21,207,496.28x = 31,781,586.04 × 11,471,081.94
  4. Step 4: Simplify right side
    21,207,496.28x = 364,569,177,619,322.44
  5. Step 5: Solve for x
    x = 364,569,177,619,322.44/21,207,496.28
  6. Step 6: Final answer
    x = 17,190,580.77

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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.