Home / 27,108.12-37,409.39-15,172.57

Finding the Fourth Proportional to 27,108.12, 37,409.39 and 15,172.57

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Solution

The fourth proportional to 27,108.12, 37,409.39 and 15,172.57 is: 20,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,108.12 : 37,409.39 = 15,172.57 : x
  2. Step 2: Convert to fraction form
    27,108.12/37,409.39 = 15,172.57/x
  3. Step 3: Cross multiply
    27,108.12x = 37,409.39 × 15,172.57
  4. Step 4: Simplify right side
    27,108.12x = 567,596,439.32
  5. Step 5: Solve for x
    x = 567,596,439.32/27,108.12
  6. Step 6: Final answer
    x = 20,938.25

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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.