Home / 23,175.16-31,981.44-12,564.64

Finding the Fourth Proportional to 23,175.16, 31,981.44 and 12,564.64

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Solution

The fourth proportional to 23,175.16, 31,981.44 and 12,564.64 is: 17,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,175.16 : 31,981.44 = 12,564.64 : x
  2. Step 2: Convert to fraction form
    23,175.16/31,981.44 = 12,564.64/x
  3. Step 3: Cross multiply
    23,175.16x = 31,981.44 × 12,564.64
  4. Step 4: Simplify right side
    23,175.16x = 401,835,280.28
  5. Step 5: Solve for x
    x = 401,835,280.28/23,175.16
  6. Step 6: Final answer
    x = 17,339.05

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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.