Home / 27,109.38-37,411.79-15,172.69

Finding the Fourth Proportional to 27,109.38, 37,411.79 and 15,172.69

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Solution

The fourth proportional to 27,109.38, 37,411.79 and 15,172.69 is: 20,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,109.38 : 37,411.79 = 15,172.69 : x
  2. Step 2: Convert to fraction form
    27,109.38/37,411.79 = 15,172.69/x
  3. Step 3: Cross multiply
    27,109.38x = 37,411.79 × 15,172.69
  4. Step 4: Simplify right side
    27,109.38x = 567,637,492.02
  5. Step 5: Solve for x
    x = 567,637,492.02/27,109.38
  6. Step 6: Final answer
    x = 20,938.79

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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.