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Finding the Fourth Proportional to 27,237.78, 40,856.76 and 7,515.90

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Solution

The fourth proportional to 27,237.78, 40,856.76 and 7,515.90 is: 11,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,237.78 : 40,856.76 = 7,515.90 : x
  2. Step 2: Convert to fraction form
    27,237.78/40,856.76 = 7,515.90/x
  3. Step 3: Cross multiply
    27,237.78x = 40,856.76 × 7,515.90
  4. Step 4: Simplify right side
    27,237.78x = 307,075,322.48
  5. Step 5: Solve for x
    x = 307,075,322.48/27,237.78
  6. Step 6: Final answer
    x = 11,273.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.