Home / 20,710.08-31,069.44-6,859.20

Finding the Fourth Proportional to 20,710.08, 31,069.44 and 6,859.20

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Solution

The fourth proportional to 20,710.08, 31,069.44 and 6,859.20 is: 10,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.08 : 31,069.44 = 6,859.20 : x
  2. Step 2: Convert to fraction form
    20,710.08/31,069.44 = 6,859.20/x
  3. Step 3: Cross multiply
    20,710.08x = 31,069.44 × 6,859.20
  4. Step 4: Simplify right side
    20,710.08x = 213,111,502.85
  5. Step 5: Solve for x
    x = 213,111,502.85/20,710.08
  6. Step 6: Final answer
    x = 10,290.23

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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.