Home / 28,536.60-42,793.86-9,813.08

Finding the Fourth Proportional to 28,536.60, 42,793.86 and 9,813.08

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Solution

The fourth proportional to 28,536.60, 42,793.86 and 9,813.08 is: 14,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.60 : 42,793.86 = 9,813.08 : x
  2. Step 2: Convert to fraction form
    28,536.60/42,793.86 = 9,813.08/x
  3. Step 3: Cross multiply
    28,536.60x = 42,793.86 × 9,813.08
  4. Step 4: Simplify right side
    28,536.60x = 419,939,571.69
  5. Step 5: Solve for x
    x = 419,939,571.69/28,536.60
  6. Step 6: Final answer
    x = 14,715.82

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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.