Home / 20,868.58-31,307.96-6,077.64

Finding the Fourth Proportional to 20,868.58, 31,307.96 and 6,077.64

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Solution

The fourth proportional to 20,868.58, 31,307.96 and 6,077.64 is: 9,117.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.58 : 31,307.96 = 6,077.64 : x
  2. Step 2: Convert to fraction form
    20,868.58/31,307.96 = 6,077.64/x
  3. Step 3: Cross multiply
    20,868.58x = 31,307.96 × 6,077.64
  4. Step 4: Simplify right side
    20,868.58x = 190,278,525.21
  5. Step 5: Solve for x
    x = 190,278,525.21/20,868.58
  6. Step 6: Final answer
    x = 9,117.94

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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.