Home / 19,873.28-27,424.76-10,920.35

Finding the Fourth Proportional to 19,873.28, 27,424.76 and 10,920.35

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Solution

The fourth proportional to 19,873.28, 27,424.76 and 10,920.35 is: 15,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.28 : 27,424.76 = 10,920.35 : x
  2. Step 2: Convert to fraction form
    19,873.28/27,424.76 = 10,920.35/x
  3. Step 3: Cross multiply
    19,873.28x = 27,424.76 × 10,920.35
  4. Step 4: Simplify right side
    19,873.28x = 299,487,786.14
  5. Step 5: Solve for x
    x = 299,487,786.14/19,873.28
  6. Step 6: Final answer
    x = 15,069.88

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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.