Home / 20,344.48-30,507.14-7,870.37

Finding the Fourth Proportional to 20,344.48, 30,507.14 and 7,870.37

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Solution

The fourth proportional to 20,344.48, 30,507.14 and 7,870.37 is: 11,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.48 : 30,507.14 = 7,870.37 : x
  2. Step 2: Convert to fraction form
    20,344.48/30,507.14 = 7,870.37/x
  3. Step 3: Cross multiply
    20,344.48x = 30,507.14 × 7,870.37
  4. Step 4: Simplify right side
    20,344.48x = 240,102,575.39
  5. Step 5: Solve for x
    x = 240,102,575.39/20,344.48
  6. Step 6: Final answer
    x = 11,801.86

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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.