Home / 21,778.45-32,673.88-10,688.47

Finding the Fourth Proportional to 21,778.45, 32,673.88 and 10,688.47

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Solution

The fourth proportional to 21,778.45, 32,673.88 and 10,688.47 is: 16,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.45 : 32,673.88 = 10,688.47 : x
  2. Step 2: Convert to fraction form
    21,778.45/32,673.88 = 10,688.47/x
  3. Step 3: Cross multiply
    21,778.45x = 32,673.88 × 10,688.47
  4. Step 4: Simplify right side
    21,778.45x = 349,233,786.16
  5. Step 5: Solve for x
    x = 349,233,786.16/21,778.45
  6. Step 6: Final answer
    x = 16,035.75

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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.