Home / 20,903.34-31,354.91-7,573.21

Finding the Fourth Proportional to 20,903.34, 31,354.91 and 7,573.21

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Solution

The fourth proportional to 20,903.34, 31,354.91 and 7,573.21 is: 11,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.34 : 31,354.91 = 7,573.21 : x
  2. Step 2: Convert to fraction form
    20,903.34/31,354.91 = 7,573.21/x
  3. Step 3: Cross multiply
    20,903.34x = 31,354.91 × 7,573.21
  4. Step 4: Simplify right side
    20,903.34x = 237,457,317.96
  5. Step 5: Solve for x
    x = 237,457,317.96/20,903.34
  6. Step 6: Final answer
    x = 11,359.78

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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.