Home / 20,090.79-30,136.23-9,695.25

Finding the Fourth Proportional to 20,090.79, 30,136.23 and 9,695.25

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Solution

The fourth proportional to 20,090.79, 30,136.23 and 9,695.25 is: 14,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.79 : 30,136.23 = 9,695.25 : x
  2. Step 2: Convert to fraction form
    20,090.79/30,136.23 = 9,695.25/x
  3. Step 3: Cross multiply
    20,090.79x = 30,136.23 × 9,695.25
  4. Step 4: Simplify right side
    20,090.79x = 292,178,283.91
  5. Step 5: Solve for x
    x = 292,178,283.91/20,090.79
  6. Step 6: Final answer
    x = 14,542.90

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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.