Home / 15,429.08-23,143.64-3,742.32

Finding the Fourth Proportional to 15,429.08, 23,143.64 and 3,742.32

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Solution

The fourth proportional to 15,429.08, 23,143.64 and 3,742.32 is: 5,613.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.08 : 23,143.64 = 3,742.32 : x
  2. Step 2: Convert to fraction form
    15,429.08/23,143.64 = 3,742.32/x
  3. Step 3: Cross multiply
    15,429.08x = 23,143.64 × 3,742.32
  4. Step 4: Simplify right side
    15,429.08x = 86,610,906.84
  5. Step 5: Solve for x
    x = 86,610,906.84/15,429.08
  6. Step 6: Final answer
    x = 5,613.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.