Home / 20,437.44-30,656.18-7,109.52

Finding the Fourth Proportional to 20,437.44, 30,656.18 and 7,109.52

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Solution

The fourth proportional to 20,437.44, 30,656.18 and 7,109.52 is: 10,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.44 : 30,656.18 = 7,109.52 : x
  2. Step 2: Convert to fraction form
    20,437.44/30,656.18 = 7,109.52/x
  3. Step 3: Cross multiply
    20,437.44x = 30,656.18 × 7,109.52
  4. Step 4: Simplify right side
    20,437.44x = 217,950,724.83
  5. Step 5: Solve for x
    x = 217,950,724.83/20,437.44
  6. Step 6: Final answer
    x = 10,664.29

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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.