Home / 20,347.53-30,518.19-5,557.65

Finding the Fourth Proportional to 20,347.53, 30,518.19 and 5,557.65

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Solution

The fourth proportional to 20,347.53, 30,518.19 and 5,557.65 is: 8,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.53 : 30,518.19 = 5,557.65 : x
  2. Step 2: Convert to fraction form
    20,347.53/30,518.19 = 5,557.65/x
  3. Step 3: Cross multiply
    20,347.53x = 30,518.19 × 5,557.65
  4. Step 4: Simplify right side
    20,347.53x = 169,609,418.65
  5. Step 5: Solve for x
    x = 169,609,418.65/20,347.53
  6. Step 6: Final answer
    x = 8,335.63

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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.