Home / 30,174.70-45,266.10-10,459.30

Finding the Fourth Proportional to 30,174.70, 45,266.10 and 10,459.30

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Solution

The fourth proportional to 30,174.70, 45,266.10 and 10,459.30 is: 15,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,174.70 : 45,266.10 = 10,459.30 : x
  2. Step 2: Convert to fraction form
    30,174.70/45,266.10 = 10,459.30/x
  3. Step 3: Cross multiply
    30,174.70x = 45,266.10 × 10,459.30
  4. Step 4: Simplify right side
    30,174.70x = 473,451,719.73
  5. Step 5: Solve for x
    x = 473,451,719.73/30,174.70
  6. Step 6: Final answer
    x = 15,690.35

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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.