Home / 30,115.17-41,557.19-16,685.63

Finding the Fourth Proportional to 30,115.17, 41,557.19 and 16,685.63

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Solution

The fourth proportional to 30,115.17, 41,557.19 and 16,685.63 is: 23,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.17 : 41,557.19 = 16,685.63 : x
  2. Step 2: Convert to fraction form
    30,115.17/41,557.19 = 16,685.63/x
  3. Step 3: Cross multiply
    30,115.17x = 41,557.19 × 16,685.63
  4. Step 4: Simplify right side
    30,115.17x = 693,407,896.18
  5. Step 5: Solve for x
    x = 693,407,896.18/30,115.17
  6. Step 6: Final answer
    x = 23,025.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.