Home / 19,872.46-27,422.65-10,919.76

Finding the Fourth Proportional to 19,872.46, 27,422.65 and 10,919.76

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Solution

The fourth proportional to 19,872.46, 27,422.65 and 10,919.76 is: 15,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.46 : 27,422.65 = 10,919.76 : x
  2. Step 2: Convert to fraction form
    19,872.46/27,422.65 = 10,919.76/x
  3. Step 3: Cross multiply
    19,872.46x = 27,422.65 × 10,919.76
  4. Step 4: Simplify right side
    19,872.46x = 299,448,821.63
  5. Step 5: Solve for x
    x = 299,448,821.63/19,872.46
  6. Step 6: Final answer
    x = 15,068.54

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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.