Home / 29,314.60-40,453.89-15,885.47

Finding the Fourth Proportional to 29,314.60, 40,453.89 and 15,885.47

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Solution

The fourth proportional to 29,314.60, 40,453.89 and 15,885.47 is: 21,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,314.60 : 40,453.89 = 15,885.47 : x
  2. Step 2: Convert to fraction form
    29,314.60/40,453.89 = 15,885.47/x
  3. Step 3: Cross multiply
    29,314.60x = 40,453.89 × 15,885.47
  4. Step 4: Simplify right side
    29,314.60x = 642,629,055.98
  5. Step 5: Solve for x
    x = 642,629,055.98/29,314.60
  6. Step 6: Final answer
    x = 21,921.81

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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.