Home / 29,243.09-40,355.79-15,814.61

Finding the Fourth Proportional to 29,243.09, 40,355.79 and 15,814.61

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Solution

The fourth proportional to 29,243.09, 40,355.79 and 15,814.61 is: 21,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,243.09 : 40,355.79 = 15,814.61 : x
  2. Step 2: Convert to fraction form
    29,243.09/40,355.79 = 15,814.61/x
  3. Step 3: Cross multiply
    29,243.09x = 40,355.79 × 15,814.61
  4. Step 4: Simplify right side
    29,243.09x = 638,210,970.34
  5. Step 5: Solve for x
    x = 638,210,970.34/29,243.09
  6. Step 6: Final answer
    x = 21,824.33

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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.