Home / 29,287.35-40,416.48-15,858.56

Finding the Fourth Proportional to 29,287.35, 40,416.48 and 15,858.56

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Solution

The fourth proportional to 29,287.35, 40,416.48 and 15,858.56 is: 21,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.35 : 40,416.48 = 15,858.56 : x
  2. Step 2: Convert to fraction form
    29,287.35/40,416.48 = 15,858.56/x
  3. Step 3: Cross multiply
    29,287.35x = 40,416.48 × 15,858.56
  4. Step 4: Simplify right side
    29,287.35x = 640,947,182.74
  5. Step 5: Solve for x
    x = 640,947,182.74/29,287.35
  6. Step 6: Final answer
    x = 21,884.78

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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.