Home / 20,444.56-28,205.50-11,490.02

Finding the Fourth Proportional to 20,444.56, 28,205.50 and 11,490.02

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Solution

The fourth proportional to 20,444.56, 28,205.50 and 11,490.02 is: 15,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.56 : 28,205.50 = 11,490.02 : x
  2. Step 2: Convert to fraction form
    20,444.56/28,205.50 = 11,490.02/x
  3. Step 3: Cross multiply
    20,444.56x = 28,205.50 × 11,490.02
  4. Step 4: Simplify right side
    20,444.56x = 324,081,759.11
  5. Step 5: Solve for x
    x = 324,081,759.11/20,444.56
  6. Step 6: Final answer
    x = 15,851.74

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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.