Home / 28,945.89-43,350.80-14,108.31

Finding the Fourth Proportional to 28,945.89, 43,350.80 and 14,108.31

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Solution

The fourth proportional to 28,945.89, 43,350.80 and 14,108.31 is: 21,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.89 : 43,350.80 = 14,108.31 : x
  2. Step 2: Convert to fraction form
    28,945.89/43,350.80 = 14,108.31/x
  3. Step 3: Cross multiply
    28,945.89x = 43,350.80 × 14,108.31
  4. Step 4: Simplify right side
    28,945.89x = 611,606,454.61
  5. Step 5: Solve for x
    x = 611,606,454.61/28,945.89
  6. Step 6: Final answer
    x = 21,129.30

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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.