Home / 28,386.29-39,171.18-16,447.49

Finding the Fourth Proportional to 28,386.29, 39,171.18 and 16,447.49

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Solution

The fourth proportional to 28,386.29, 39,171.18 and 16,447.49 is: 22,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.29 : 39,171.18 = 16,447.49 : x
  2. Step 2: Convert to fraction form
    28,386.29/39,171.18 = 16,447.49/x
  3. Step 3: Cross multiply
    28,386.29x = 39,171.18 × 16,447.49
  4. Step 4: Simplify right side
    28,386.29x = 644,267,395.48
  5. Step 5: Solve for x
    x = 644,267,395.48/28,386.29
  6. Step 6: Final answer
    x = 22,696.43

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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.