Home / 28,274.88-42,402.56-14,229.48

Finding the Fourth Proportional to 28,274.88, 42,402.56 and 14,229.48

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Solution

The fourth proportional to 28,274.88, 42,402.56 and 14,229.48 is: 21,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.88 : 42,402.56 = 14,229.48 : x
  2. Step 2: Convert to fraction form
    28,274.88/42,402.56 = 14,229.48/x
  3. Step 3: Cross multiply
    28,274.88x = 42,402.56 × 14,229.48
  4. Step 4: Simplify right side
    28,274.88x = 603,366,379.47
  5. Step 5: Solve for x
    x = 603,366,379.47/28,274.88
  6. Step 6: Final answer
    x = 21,339.31

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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.