Home / 30,350.18-41,881.29-16,920.63

Finding the Fourth Proportional to 30,350.18, 41,881.29 and 16,920.63

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Solution

The fourth proportional to 30,350.18, 41,881.29 and 16,920.63 is: 23,349.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.18 : 41,881.29 = 16,920.63 : x
  2. Step 2: Convert to fraction form
    30,350.18/41,881.29 = 16,920.63/x
  3. Step 3: Cross multiply
    30,350.18x = 41,881.29 × 16,920.63
  4. Step 4: Simplify right side
    30,350.18x = 708,657,812.01
  5. Step 5: Solve for x
    x = 708,657,812.01/30,350.18
  6. Step 6: Final answer
    x = 23,349.38

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Half scale
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Double scale
Find fourth proportional to 30,351.18, 41,882.67 and 16,921.63
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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.