Home / 22,918.57-31,627.69-12,710.32

Finding the Fourth Proportional to 22,918.57, 31,627.69 and 12,710.32

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Solution

The fourth proportional to 22,918.57, 31,627.69 and 12,710.32 is: 17,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.57 : 31,627.69 = 12,710.32 : x
  2. Step 2: Convert to fraction form
    22,918.57/31,627.69 = 12,710.32/x
  3. Step 3: Cross multiply
    22,918.57x = 31,627.69 × 12,710.32
  4. Step 4: Simplify right side
    22,918.57x = 401,997,839.07
  5. Step 5: Solve for x
    x = 401,997,839.07/22,918.57
  6. Step 6: Final answer
    x = 17,540.27

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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.