Home / 20,355.42-30,533.52-13,379.96

Finding the Fourth Proportional to 20,355.42, 30,533.52 and 13,379.96

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Solution

The fourth proportional to 20,355.42, 30,533.52 and 13,379.96 is: 20,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.42 : 30,533.52 = 13,379.96 : x
  2. Step 2: Convert to fraction form
    20,355.42/30,533.52 = 13,379.96/x
  3. Step 3: Cross multiply
    20,355.42x = 30,533.52 × 13,379.96
  4. Step 4: Simplify right side
    20,355.42x = 408,537,276.26
  5. Step 5: Solve for x
    x = 408,537,276.26/20,355.42
  6. Step 6: Final answer
    x = 20,070.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.