Home / 34,505.16-47,620.16-20,355.24

Finding the Fourth Proportional to 34,505.16, 47,620.16 and 20,355.24

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Solution

The fourth proportional to 34,505.16, 47,620.16 and 20,355.24 is: 28,092.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,505.16 : 47,620.16 = 20,355.24 : x
  2. Step 2: Convert to fraction form
    34,505.16/47,620.16 = 20,355.24/x
  3. Step 3: Cross multiply
    34,505.16x = 47,620.16 × 20,355.24
  4. Step 4: Simplify right side
    34,505.16x = 969,319,785.64
  5. Step 5: Solve for x
    x = 969,319,785.64/34,505.16
  6. Step 6: Final answer
    x = 28,092.02

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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.