Home / 28,567.75-42,879.34-13,787.08

Finding the Fourth Proportional to 28,567.75, 42,879.34 and 13,787.08

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Solution

The fourth proportional to 28,567.75, 42,879.34 and 13,787.08 is: 20,694.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.75 : 42,879.34 = 13,787.08 : x
  2. Step 2: Convert to fraction form
    28,567.75/42,879.34 = 13,787.08/x
  3. Step 3: Cross multiply
    28,567.75x = 42,879.34 × 13,787.08
  4. Step 4: Simplify right side
    28,567.75x = 591,180,890.93
  5. Step 5: Solve for x
    x = 591,180,890.93/28,567.75
  6. Step 6: Final answer
    x = 20,694.00

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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.