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Finding the Fourth Proportional to 39,430, 54,422.64 and 26,003.68

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Solution

The fourth proportional to 39,430, 54,422.64 and 26,003.68 is: 35,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430 : 54,422.64 = 26,003.68 : x
  2. Step 2: Convert to fraction form
    39,430/54,422.64 = 26,003.68/x
  3. Step 3: Cross multiply
    39,430x = 54,422.64 × 26,003.68
  4. Step 4: Simplify right side
    39,430x = 1,415,188,915.32
  5. Step 5: Solve for x
    x = 1,415,188,915.32/39,430
  6. Step 6: Final answer
    x = 35,891.17

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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.