Home / 28,439.40-39,253.62-16,966.68

Finding the Fourth Proportional to 28,439.40, 39,253.62 and 16,966.68

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Solution

The fourth proportional to 28,439.40, 39,253.62 and 16,966.68 is: 23,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.40 : 39,253.62 = 16,966.68 : x
  2. Step 2: Convert to fraction form
    28,439.40/39,253.62 = 16,966.68/x
  3. Step 3: Cross multiply
    28,439.40x = 39,253.62 × 16,966.68
  4. Step 4: Simplify right side
    28,439.40x = 666,003,609.38
  5. Step 5: Solve for x
    x = 666,003,609.38/28,439.40
  6. Step 6: Final answer
    x = 23,418.34

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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.