Home / 27,143.78-37,457.51-15,043.75

Finding the Fourth Proportional to 27,143.78, 37,457.51 and 15,043.75

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Solution

The fourth proportional to 27,143.78, 37,457.51 and 15,043.75 is: 20,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.78 : 37,457.51 = 15,043.75 : x
  2. Step 2: Convert to fraction form
    27,143.78/37,457.51 = 15,043.75/x
  3. Step 3: Cross multiply
    27,143.78x = 37,457.51 × 15,043.75
  4. Step 4: Simplify right side
    27,143.78x = 563,501,360.03
  5. Step 5: Solve for x
    x = 563,501,360.03/27,143.78
  6. Step 6: Final answer
    x = 20,759.87

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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.