Home / 30,047.20-45,005.10-15,230.68

Finding the Fourth Proportional to 30,047.20, 45,005.10 and 15,230.68

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Solution

The fourth proportional to 30,047.20, 45,005.10 and 15,230.68 is: 22,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.20 : 45,005.10 = 15,230.68 : x
  2. Step 2: Convert to fraction form
    30,047.20/45,005.10 = 15,230.68/x
  3. Step 3: Cross multiply
    30,047.20x = 45,005.10 × 15,230.68
  4. Step 4: Simplify right side
    30,047.20x = 685,458,276.47
  5. Step 5: Solve for x
    x = 685,458,276.47/30,047.20
  6. Step 6: Final answer
    x = 22,812.72

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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.