Home / 20,859.19-31,288.79-5,064.24

Finding the Fourth Proportional to 20,859.19, 31,288.79 and 5,064.24

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Solution

The fourth proportional to 20,859.19, 31,288.79 and 5,064.24 is: 7,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.19 : 31,288.79 = 5,064.24 : x
  2. Step 2: Convert to fraction form
    20,859.19/31,288.79 = 5,064.24/x
  3. Step 3: Cross multiply
    20,859.19x = 31,288.79 × 5,064.24
  4. Step 4: Simplify right side
    20,859.19x = 158,453,941.87
  5. Step 5: Solve for x
    x = 158,453,941.87/20,859.19
  6. Step 6: Final answer
    x = 7,596.36

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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.