Home / 31,742.10-47,613.62-12,015.36

Finding the Fourth Proportional to 31,742.10, 47,613.62 and 12,015.36

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Solution

The fourth proportional to 31,742.10, 47,613.62 and 12,015.36 is: 18,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.10 : 47,613.62 = 12,015.36 : x
  2. Step 2: Convert to fraction form
    31,742.10/47,613.62 = 12,015.36/x
  3. Step 3: Cross multiply
    31,742.10x = 47,613.62 × 12,015.36
  4. Step 4: Simplify right side
    31,742.10x = 572,094,785.20
  5. Step 5: Solve for x
    x = 572,094,785.20/31,742.10
  6. Step 6: Final answer
    x = 18,023.22

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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.