Home / 20,449.02-28,220.47-11,496.50

Finding the Fourth Proportional to 20,449.02, 28,220.47 and 11,496.50

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Solution

The fourth proportional to 20,449.02, 28,220.47 and 11,496.50 is: 15,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.02 : 28,220.47 = 11,496.50 : x
  2. Step 2: Convert to fraction form
    20,449.02/28,220.47 = 11,496.50/x
  3. Step 3: Cross multiply
    20,449.02x = 28,220.47 × 11,496.50
  4. Step 4: Simplify right side
    20,449.02x = 324,436,569.34
  5. Step 5: Solve for x
    x = 324,436,569.34/20,449.02
  6. Step 6: Final answer
    x = 15,865.63

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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.