Home / 28,539.27-42,813.54-8,813.25

Finding the Fourth Proportional to 28,539.27, 42,813.54 and 8,813.25

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Solution

The fourth proportional to 28,539.27, 42,813.54 and 8,813.25 is: 13,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.27 : 42,813.54 = 8,813.25 : x
  2. Step 2: Convert to fraction form
    28,539.27/42,813.54 = 8,813.25/x
  3. Step 3: Cross multiply
    28,539.27x = 42,813.54 × 8,813.25
  4. Step 4: Simplify right side
    28,539.27x = 377,326,431.41
  5. Step 5: Solve for x
    x = 377,326,431.41/28,539.27
  6. Step 6: Final answer
    x = 13,221.31

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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.