Home / 27,280.57-37,644.14-15,343.65

Finding the Fourth Proportional to 27,280.57, 37,644.14 and 15,343.65

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Solution

The fourth proportional to 27,280.57, 37,644.14 and 15,343.65 is: 21,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,280.57 : 37,644.14 = 15,343.65 : x
  2. Step 2: Convert to fraction form
    27,280.57/37,644.14 = 15,343.65/x
  3. Step 3: Cross multiply
    27,280.57x = 37,644.14 × 15,343.65
  4. Step 4: Simplify right side
    27,280.57x = 577,598,652.94
  5. Step 5: Solve for x
    x = 577,598,652.94/27,280.57
  6. Step 6: Final answer
    x = 21,172.53

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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.