Home / 25,742.43-35,513.99-15,662.79

Finding the Fourth Proportional to 25,742.43, 35,513.99 and 15,662.79

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Solution

The fourth proportional to 25,742.43, 35,513.99 and 15,662.79 is: 21,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.43 : 35,513.99 = 15,662.79 : x
  2. Step 2: Convert to fraction form
    25,742.43/35,513.99 = 15,662.79/x
  3. Step 3: Cross multiply
    25,742.43x = 35,513.99 × 15,662.79
  4. Step 4: Simplify right side
    25,742.43x = 556,248,117.80
  5. Step 5: Solve for x
    x = 556,248,117.80/25,742.43
  6. Step 6: Final answer
    x = 21,608.22

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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.