Home / 30,090.36-45,141.18-13,451.05

Finding the Fourth Proportional to 30,090.36, 45,141.18 and 13,451.05

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Solution

The fourth proportional to 30,090.36, 45,141.18 and 13,451.05 is: 20,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.36 : 45,141.18 = 13,451.05 : x
  2. Step 2: Convert to fraction form
    30,090.36/45,141.18 = 13,451.05/x
  3. Step 3: Cross multiply
    30,090.36x = 45,141.18 × 13,451.05
  4. Step 4: Simplify right side
    30,090.36x = 607,196,269.24
  5. Step 5: Solve for x
    x = 607,196,269.24/30,090.36
  6. Step 6: Final answer
    x = 20,179.10

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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.