Home / 28,703.70-43,123.23-16,887.78

Finding the Fourth Proportional to 28,703.70, 43,123.23 and 16,887.78

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Solution

The fourth proportional to 28,703.70, 43,123.23 and 16,887.78 is: 25,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.70 : 43,123.23 = 16,887.78 : x
  2. Step 2: Convert to fraction form
    28,703.70/43,123.23 = 16,887.78/x
  3. Step 3: Cross multiply
    28,703.70x = 43,123.23 × 16,887.78
  4. Step 4: Simplify right side
    28,703.70x = 728,255,621.13
  5. Step 5: Solve for x
    x = 728,255,621.13/28,703.70
  6. Step 6: Final answer
    x = 25,371.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.