Home / 20,770.58-31,144.86-9,070.13

Finding the Fourth Proportional to 20,770.58, 31,144.86 and 9,070.13

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Solution

The fourth proportional to 20,770.58, 31,144.86 and 9,070.13 is: 13,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.58 : 31,144.86 = 9,070.13 : x
  2. Step 2: Convert to fraction form
    20,770.58/31,144.86 = 9,070.13/x
  3. Step 3: Cross multiply
    20,770.58x = 31,144.86 × 9,070.13
  4. Step 4: Simplify right side
    20,770.58x = 282,487,773.31
  5. Step 5: Solve for x
    x = 282,487,773.31/20,770.58
  6. Step 6: Final answer
    x = 13,600.38

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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.