Home / 28,677.15-43,015.68-18,814.08

Finding the Fourth Proportional to 28,677.15, 43,015.68 and 18,814.08

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Solution

The fourth proportional to 28,677.15, 43,015.68 and 18,814.08 is: 28,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.15 : 43,015.68 = 18,814.08 : x
  2. Step 2: Convert to fraction form
    28,677.15/43,015.68 = 18,814.08/x
  3. Step 3: Cross multiply
    28,677.15x = 43,015.68 × 18,814.08
  4. Step 4: Simplify right side
    28,677.15x = 809,300,444.77
  5. Step 5: Solve for x
    x = 809,300,444.77/28,677.15
  6. Step 6: Final answer
    x = 28,221.09

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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.