Home / 29,440.09-40,663.80-21,360.79

Finding the Fourth Proportional to 29,440.09, 40,663.80 and 21,360.79

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Solution

The fourth proportional to 29,440.09, 40,663.80 and 21,360.79 is: 29,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,440.09 : 40,663.80 = 21,360.79 : x
  2. Step 2: Convert to fraction form
    29,440.09/40,663.80 = 21,360.79/x
  3. Step 3: Cross multiply
    29,440.09x = 40,663.80 × 21,360.79
  4. Step 4: Simplify right side
    29,440.09x = 868,610,819.68
  5. Step 5: Solve for x
    x = 868,610,819.68/29,440.09
  6. Step 6: Final answer
    x = 29,504.35

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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.