Home / 23,126.28-31,914.36-12,515.91

Finding the Fourth Proportional to 23,126.28, 31,914.36 and 12,515.91

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Solution

The fourth proportional to 23,126.28, 31,914.36 and 12,515.91 is: 17,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.28 : 31,914.36 = 12,515.91 : x
  2. Step 2: Convert to fraction form
    23,126.28/31,914.36 = 12,515.91/x
  3. Step 3: Cross multiply
    23,126.28x = 31,914.36 × 12,515.91
  4. Step 4: Simplify right side
    23,126.28x = 399,437,257.47
  5. Step 5: Solve for x
    x = 399,437,257.47/23,126.28
  6. Step 6: Final answer
    x = 17,272.01

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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.