Home / 22,643.16-31,247.82-12,571.80

Finding the Fourth Proportional to 22,643.16, 31,247.82 and 12,571.80

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Solution

The fourth proportional to 22,643.16, 31,247.82 and 12,571.80 is: 17,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.16 : 31,247.82 = 12,571.80 : x
  2. Step 2: Convert to fraction form
    22,643.16/31,247.82 = 12,571.80/x
  3. Step 3: Cross multiply
    22,643.16x = 31,247.82 × 12,571.80
  4. Step 4: Simplify right side
    22,643.16x = 392,841,343.48
  5. Step 5: Solve for x
    x = 392,841,343.48/22,643.16
  6. Step 6: Final answer
    x = 17,349.23

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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.