Home / 20,374.21-30,563.23-7,223.45

Finding the Fourth Proportional to 20,374.21, 30,563.23 and 7,223.45

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Solution

The fourth proportional to 20,374.21, 30,563.23 and 7,223.45 is: 10,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.21 : 30,563.23 = 7,223.45 : x
  2. Step 2: Convert to fraction form
    20,374.21/30,563.23 = 7,223.45/x
  3. Step 3: Cross multiply
    20,374.21x = 30,563.23 × 7,223.45
  4. Step 4: Simplify right side
    20,374.21x = 220,771,963.74
  5. Step 5: Solve for x
    x = 220,771,963.74/20,374.21
  6. Step 6: Final answer
    x = 10,835.85

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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.