Home / 20,374.74-30,542.67-7,219.94

Finding the Fourth Proportional to 20,374.74, 30,542.67 and 7,219.94

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Solution

The fourth proportional to 20,374.74, 30,542.67 and 7,219.94 is: 10,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.74 : 30,542.67 = 7,219.94 : x
  2. Step 2: Convert to fraction form
    20,374.74/30,542.67 = 7,219.94/x
  3. Step 3: Cross multiply
    20,374.74x = 30,542.67 × 7,219.94
  4. Step 4: Simplify right side
    20,374.74x = 220,516,092.13
  5. Step 5: Solve for x
    x = 220,516,092.13/20,374.74
  6. Step 6: Final answer
    x = 10,823.01

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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.