Home / 28,787.50-39,726.84-16,212.52

Finding the Fourth Proportional to 28,787.50, 39,726.84 and 16,212.52

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Solution

The fourth proportional to 28,787.50, 39,726.84 and 16,212.52 is: 22,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.50 : 39,726.84 = 16,212.52 : x
  2. Step 2: Convert to fraction form
    28,787.50/39,726.84 = 16,212.52/x
  3. Step 3: Cross multiply
    28,787.50x = 39,726.84 × 16,212.52
  4. Step 4: Simplify right side
    28,787.50x = 644,072,188.04
  5. Step 5: Solve for x
    x = 644,072,188.04/28,787.50
  6. Step 6: Final answer
    x = 22,373.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.