Home / 22,526.78-31,086.48-12,455.64

Finding the Fourth Proportional to 22,526.78, 31,086.48 and 12,455.64

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Solution

The fourth proportional to 22,526.78, 31,086.48 and 12,455.64 is: 17,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,526.78 : 31,086.48 = 12,455.64 : x
  2. Step 2: Convert to fraction form
    22,526.78/31,086.48 = 12,455.64/x
  3. Step 3: Cross multiply
    22,526.78x = 31,086.48 × 12,455.64
  4. Step 4: Simplify right side
    22,526.78x = 387,202,003.75
  5. Step 5: Solve for x
    x = 387,202,003.75/22,526.78
  6. Step 6: Final answer
    x = 17,188.52

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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.