Home / 19,838.96-29,777-10,485.92

Finding the Fourth Proportional to 19,838.96, 29,777 and 10,485.92

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Solution

The fourth proportional to 19,838.96, 29,777 and 10,485.92 is: 15,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.96 : 29,777 = 10,485.92 : x
  2. Step 2: Convert to fraction form
    19,838.96/29,777 = 10,485.92/x
  3. Step 3: Cross multiply
    19,838.96x = 29,777 × 10,485.92
  4. Step 4: Simplify right side
    19,838.96x = 312,239,239.84
  5. Step 5: Solve for x
    x = 312,239,239.84/19,838.96
  6. Step 6: Final answer
    x = 15,738.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.