Home / 28,429.30-39,221.44-16,490.44

Finding the Fourth Proportional to 28,429.30, 39,221.44 and 16,490.44

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Solution

The fourth proportional to 28,429.30, 39,221.44 and 16,490.44 is: 22,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.30 : 39,221.44 = 16,490.44 : x
  2. Step 2: Convert to fraction form
    28,429.30/39,221.44 = 16,490.44/x
  3. Step 3: Cross multiply
    28,429.30x = 39,221.44 × 16,490.44
  4. Step 4: Simplify right side
    28,429.30x = 646,778,803.03
  5. Step 5: Solve for x
    x = 646,778,803.03/28,429.30
  6. Step 6: Final answer
    x = 22,750.43

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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.