Home / 29,244.35-40,357.18-15,815.64

Finding the Fourth Proportional to 29,244.35, 40,357.18 and 15,815.64

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Solution

The fourth proportional to 29,244.35, 40,357.18 and 15,815.64 is: 21,825.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,244.35 : 40,357.18 = 15,815.64 : x
  2. Step 2: Convert to fraction form
    29,244.35/40,357.18 = 15,815.64/x
  3. Step 3: Cross multiply
    29,244.35x = 40,357.18 × 15,815.64
  4. Step 4: Simplify right side
    29,244.35x = 638,274,551.22
  5. Step 5: Solve for x
    x = 638,274,551.22/29,244.35
  6. Step 6: Final answer
    x = 21,825.57

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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.