Home / 28,756.71-39,684.24-16,181.46

Finding the Fourth Proportional to 28,756.71, 39,684.24 and 16,181.46

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Solution

The fourth proportional to 28,756.71, 39,684.24 and 16,181.46 is: 22,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.71 : 39,684.24 = 16,181.46 : x
  2. Step 2: Convert to fraction form
    28,756.71/39,684.24 = 16,181.46/x
  3. Step 3: Cross multiply
    28,756.71x = 39,684.24 × 16,181.46
  4. Step 4: Simplify right side
    28,756.71x = 642,148,942.19
  5. Step 5: Solve for x
    x = 642,148,942.19/28,756.71
  6. Step 6: Final answer
    x = 22,330.40

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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.