Home / 27,368.89-37,772.43-15,431.99

Finding the Fourth Proportional to 27,368.89, 37,772.43 and 15,431.99

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Solution

The fourth proportional to 27,368.89, 37,772.43 and 15,431.99 is: 21,298.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,368.89 : 37,772.43 = 15,431.99 : x
  2. Step 2: Convert to fraction form
    27,368.89/37,772.43 = 15,431.99/x
  3. Step 3: Cross multiply
    27,368.89x = 37,772.43 × 15,431.99
  4. Step 4: Simplify right side
    27,368.89x = 582,903,515.30
  5. Step 5: Solve for x
    x = 582,903,515.30/27,368.89
  6. Step 6: Final answer
    x = 21,298.03

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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.