Home / 20,073.77-27,702.02-11,121.41

Finding the Fourth Proportional to 20,073.77, 27,702.02 and 11,121.41

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Solution

The fourth proportional to 20,073.77, 27,702.02 and 11,121.41 is: 15,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.77 : 27,702.02 = 11,121.41 : x
  2. Step 2: Convert to fraction form
    20,073.77/27,702.02 = 11,121.41/x
  3. Step 3: Cross multiply
    20,073.77x = 27,702.02 × 11,121.41
  4. Step 4: Simplify right side
    20,073.77x = 308,085,328.13
  5. Step 5: Solve for x
    x = 308,085,328.13/20,073.77
  6. Step 6: Final answer
    x = 15,347.66

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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.