Home / 30,546.77-42,115.23-19,772.55

Finding the Fourth Proportional to 30,546.77, 42,115.23 and 19,772.55

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Solution

The fourth proportional to 30,546.77, 42,115.23 and 19,772.55 is: 27,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.77 : 42,115.23 = 19,772.55 : x
  2. Step 2: Convert to fraction form
    30,546.77/42,115.23 = 19,772.55/x
  3. Step 3: Cross multiply
    30,546.77x = 42,115.23 × 19,772.55
  4. Step 4: Simplify right side
    30,546.77x = 832,725,490.94
  5. Step 5: Solve for x
    x = 832,725,490.94/30,546.77
  6. Step 6: Final answer
    x = 27,260.68

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Half scale
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Double scale
Find fourth proportional to 30,547.77, 42,116.61 and 19,773.55
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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.