Home / 20,014.16-27,619.74-10,939.78

Finding the Fourth Proportional to 20,014.16, 27,619.74 and 10,939.78

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Solution

The fourth proportional to 20,014.16, 27,619.74 and 10,939.78 is: 15,097.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.16 : 27,619.74 = 10,939.78 : x
  2. Step 2: Convert to fraction form
    20,014.16/27,619.74 = 10,939.78/x
  3. Step 3: Cross multiply
    20,014.16x = 27,619.74 × 10,939.78
  4. Step 4: Simplify right side
    20,014.16x = 302,153,885.76
  5. Step 5: Solve for x
    x = 302,153,885.76/20,014.16
  6. Step 6: Final answer
    x = 15,097.01

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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.