Home / 30,207.20-45,309.60-10,490.24

Finding the Fourth Proportional to 30,207.20, 45,309.60 and 10,490.24

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Solution

The fourth proportional to 30,207.20, 45,309.60 and 10,490.24 is: 15,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.20 : 45,309.60 = 10,490.24 : x
  2. Step 2: Convert to fraction form
    30,207.20/45,309.60 = 10,490.24/x
  3. Step 3: Cross multiply
    30,207.20x = 45,309.60 × 10,490.24
  4. Step 4: Simplify right side
    30,207.20x = 475,308,578.30
  5. Step 5: Solve for x
    x = 475,308,578.30/30,207.20
  6. Step 6: Final answer
    x = 15,734.94

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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.