Home / 28,224.74-38,951.88-15,649.49

Finding the Fourth Proportional to 28,224.74, 38,951.88 and 15,649.49

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Solution

The fourth proportional to 28,224.74, 38,951.88 and 15,649.49 is: 21,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.74 : 38,951.88 = 15,649.49 : x
  2. Step 2: Convert to fraction form
    28,224.74/38,951.88 = 15,649.49/x
  3. Step 3: Cross multiply
    28,224.74x = 38,951.88 × 15,649.49
  4. Step 4: Simplify right side
    28,224.74x = 609,576,861.78
  5. Step 5: Solve for x
    x = 609,576,861.78/28,224.74
  6. Step 6: Final answer
    x = 21,597.26

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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.