Home / 19,881.92-27,437.28-10,929.36

Finding the Fourth Proportional to 19,881.92, 27,437.28 and 10,929.36

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Solution

The fourth proportional to 19,881.92, 27,437.28 and 10,929.36 is: 15,082.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.92 : 27,437.28 = 10,929.36 : x
  2. Step 2: Convert to fraction form
    19,881.92/27,437.28 = 10,929.36/x
  3. Step 3: Cross multiply
    19,881.92x = 27,437.28 × 10,929.36
  4. Step 4: Simplify right side
    19,881.92x = 299,871,910.54
  5. Step 5: Solve for x
    x = 299,871,910.54/19,881.92
  6. Step 6: Final answer
    x = 15,082.64

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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.