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Finding the Fourth Proportional to 28,999.69, 43,498.05 and 16,998.51

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Solution

The fourth proportional to 28,999.69, 43,498.05 and 16,998.51 is: 25,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.69 : 43,498.05 = 16,998.51 : x
  2. Step 2: Convert to fraction form
    28,999.69/43,498.05 = 16,998.51/x
  3. Step 3: Cross multiply
    28,999.69x = 43,498.05 × 16,998.51
  4. Step 4: Simplify right side
    28,999.69x = 739,402,037.91
  5. Step 5: Solve for x
    x = 739,402,037.91/28,999.69
  6. Step 6: Final answer
    x = 25,496.89

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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.