Home / 28,429.26-39,229.23-16,490.28

Finding the Fourth Proportional to 28,429.26, 39,229.23 and 16,490.28

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Solution

The fourth proportional to 28,429.26, 39,229.23 and 16,490.28 is: 22,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.26 : 39,229.23 = 16,490.28 : x
  2. Step 2: Convert to fraction form
    28,429.26/39,229.23 = 16,490.28/x
  3. Step 3: Cross multiply
    28,429.26x = 39,229.23 × 16,490.28
  4. Step 4: Simplify right side
    28,429.26x = 646,901,195.83
  5. Step 5: Solve for x
    x = 646,901,195.83/28,429.26
  6. Step 6: Final answer
    x = 22,754.77

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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.