Home / 27,012.41-37,278.99-15,078.07

Finding the Fourth Proportional to 27,012.41, 37,278.99 and 15,078.07

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Solution

The fourth proportional to 27,012.41, 37,278.99 and 15,078.07 is: 20,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,012.41 : 37,278.99 = 15,078.07 : x
  2. Step 2: Convert to fraction form
    27,012.41/37,278.99 = 15,078.07/x
  3. Step 3: Cross multiply
    27,012.41x = 37,278.99 × 15,078.07
  4. Step 4: Simplify right side
    27,012.41x = 562,095,127.55
  5. Step 5: Solve for x
    x = 562,095,127.55/27,012.41
  6. Step 6: Final answer
    x = 20,808.78

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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.