Home / 28,179.90-38,887.23-16,243.74

Finding the Fourth Proportional to 28,179.90, 38,887.23 and 16,243.74

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Solution

The fourth proportional to 28,179.90, 38,887.23 and 16,243.74 is: 22,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.90 : 38,887.23 = 16,243.74 : x
  2. Step 2: Convert to fraction form
    28,179.90/38,887.23 = 16,243.74/x
  3. Step 3: Cross multiply
    28,179.90x = 38,887.23 × 16,243.74
  4. Step 4: Simplify right side
    28,179.90x = 631,674,053.44
  5. Step 5: Solve for x
    x = 631,674,053.44/28,179.90
  6. Step 6: Final answer
    x = 22,415.77

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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.