Home / 19,824.90-27,358.70-10,871.84

Finding the Fourth Proportional to 19,824.90, 27,358.70 and 10,871.84

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Solution

The fourth proportional to 19,824.90, 27,358.70 and 10,871.84 is: 15,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,824.90 : 27,358.70 = 10,871.84 : x
  2. Step 2: Convert to fraction form
    19,824.90/27,358.70 = 10,871.84/x
  3. Step 3: Cross multiply
    19,824.90x = 27,358.70 × 10,871.84
  4. Step 4: Simplify right side
    19,824.90x = 297,439,217.86
  5. Step 5: Solve for x
    x = 297,439,217.86/19,824.90
  6. Step 6: Final answer
    x = 15,003.31

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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.