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Finding the Fourth Proportional to 27,455, 37,887.98 and 14,879.80

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Solution

The fourth proportional to 27,455, 37,887.98 and 14,879.80 is: 20,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455 : 37,887.98 = 14,879.80 : x
  2. Step 2: Convert to fraction form
    27,455/37,887.98 = 14,879.80/x
  3. Step 3: Cross multiply
    27,455x = 37,887.98 × 14,879.80
  4. Step 4: Simplify right side
    27,455x = 563,765,564.80
  5. Step 5: Solve for x
    x = 563,765,564.80/27,455
  6. Step 6: Final answer
    x = 20,534.17

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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.