Home / 30,224.10-45,336.15-19,143.30

Finding the Fourth Proportional to 30,224.10, 45,336.15 and 19,143.30

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Solution

The fourth proportional to 30,224.10, 45,336.15 and 19,143.30 is: 28,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,224.10 : 45,336.15 = 19,143.30 : x
  2. Step 2: Convert to fraction form
    30,224.10/45,336.15 = 19,143.30/x
  3. Step 3: Cross multiply
    30,224.10x = 45,336.15 × 19,143.30
  4. Step 4: Simplify right side
    30,224.10x = 867,883,520.30
  5. Step 5: Solve for x
    x = 867,883,520.30/30,224.10
  6. Step 6: Final answer
    x = 28,714.95

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Double scale
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Similar ratio
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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.