Home / 23,126.16-31,914.09-12,515.79

Finding the Fourth Proportional to 23,126.16, 31,914.09 and 12,515.79

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Solution

The fourth proportional to 23,126.16, 31,914.09 and 12,515.79 is: 17,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.16 : 31,914.09 = 12,515.79 : x
  2. Step 2: Convert to fraction form
    23,126.16/31,914.09 = 12,515.79/x
  3. Step 3: Cross multiply
    23,126.16x = 31,914.09 × 12,515.79
  4. Step 4: Simplify right side
    23,126.16x = 399,430,048.48
  5. Step 5: Solve for x
    x = 399,430,048.48/23,126.16
  6. Step 6: Final answer
    x = 17,271.78

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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.