Home / 23,147.16-31,942.80-12,536.64

Finding the Fourth Proportional to 23,147.16, 31,942.80 and 12,536.64

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Solution

The fourth proportional to 23,147.16, 31,942.80 and 12,536.64 is: 17,300.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.16 : 31,942.80 = 12,536.64 : x
  2. Step 2: Convert to fraction form
    23,147.16/31,942.80 = 12,536.64/x
  3. Step 3: Cross multiply
    23,147.16x = 31,942.80 × 12,536.64
  4. Step 4: Simplify right side
    23,147.16x = 400,455,384.19
  5. Step 5: Solve for x
    x = 400,455,384.19/23,147.16
  6. Step 6: Final answer
    x = 17,300.41

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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.