Home / 30,348.76-41,907.12-19,037.20

Finding the Fourth Proportional to 30,348.76, 41,907.12 and 19,037.20

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Solution

The fourth proportional to 30,348.76, 41,907.12 and 19,037.20 is: 26,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.76 : 41,907.12 = 19,037.20 : x
  2. Step 2: Convert to fraction form
    30,348.76/41,907.12 = 19,037.20/x
  3. Step 3: Cross multiply
    30,348.76x = 41,907.12 × 19,037.20
  4. Step 4: Simplify right side
    30,348.76x = 797,794,224.86
  5. Step 5: Solve for x
    x = 797,794,224.86/30,348.76
  6. Step 6: Final answer
    x = 26,287.54

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Half scale
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Double scale
Find fourth proportional to 30,349.76, 41,908.50 and 19,038.20
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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.