Home / 19,768.90-27,280.84-10,816.30

Finding the Fourth Proportional to 19,768.90, 27,280.84 and 10,816.30

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Solution

The fourth proportional to 19,768.90, 27,280.84 and 10,816.30 is: 14,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.90 : 27,280.84 = 10,816.30 : x
  2. Step 2: Convert to fraction form
    19,768.90/27,280.84 = 10,816.30/x
  3. Step 3: Cross multiply
    19,768.90x = 27,280.84 × 10,816.30
  4. Step 4: Simplify right side
    19,768.90x = 295,077,749.69
  5. Step 5: Solve for x
    x = 295,077,749.69/19,768.90
  6. Step 6: Final answer
    x = 14,926.36

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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.