Home / 28,516.20-39,352.12-16,419.06

Finding the Fourth Proportional to 28,516.20, 39,352.12 and 16,419.06

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Solution

The fourth proportional to 28,516.20, 39,352.12 and 16,419.06 is: 22,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.20 : 39,352.12 = 16,419.06 : x
  2. Step 2: Convert to fraction form
    28,516.20/39,352.12 = 16,419.06/x
  3. Step 3: Cross multiply
    28,516.20x = 39,352.12 × 16,419.06
  4. Step 4: Simplify right side
    28,516.20x = 646,124,819.41
  5. Step 5: Solve for x
    x = 646,124,819.41/28,516.20
  6. Step 6: Final answer
    x = 22,658.17

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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.