Home / 19,410.60-29,090.70-9,000.20

Finding the Fourth Proportional to 19,410.60, 29,090.70 and 9,000.20

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Solution

The fourth proportional to 19,410.60, 29,090.70 and 9,000.20 is: 13,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.60 : 29,090.70 = 9,000.20 : x
  2. Step 2: Convert to fraction form
    19,410.60/29,090.70 = 9,000.20/x
  3. Step 3: Cross multiply
    19,410.60x = 29,090.70 × 9,000.20
  4. Step 4: Simplify right side
    19,410.60x = 261,822,118.14
  5. Step 5: Solve for x
    x = 261,822,118.14/19,410.60
  6. Step 6: Final answer
    x = 13,488.62

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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.