Home / 30,207.24-45,311.10-9,431.40

Finding the Fourth Proportional to 30,207.24, 45,311.10 and 9,431.40

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Solution

The fourth proportional to 30,207.24, 45,311.10 and 9,431.40 is: 14,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.24 : 45,311.10 = 9,431.40 : x
  2. Step 2: Convert to fraction form
    30,207.24/45,311.10 = 9,431.40/x
  3. Step 3: Cross multiply
    30,207.24x = 45,311.10 × 9,431.40
  4. Step 4: Simplify right side
    30,207.24x = 427,347,108.54
  5. Step 5: Solve for x
    x = 427,347,108.54/30,207.24
  6. Step 6: Final answer
    x = 14,147.17

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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.