Home / 28,089.76-38,765.91-16,156.84

Finding the Fourth Proportional to 28,089.76, 38,765.91 and 16,156.84

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Solution

The fourth proportional to 28,089.76, 38,765.91 and 16,156.84 is: 22,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.76 : 38,765.91 = 16,156.84 : x
  2. Step 2: Convert to fraction form
    28,089.76/38,765.91 = 16,156.84/x
  3. Step 3: Cross multiply
    28,089.76x = 38,765.91 × 16,156.84
  4. Step 4: Simplify right side
    28,089.76x = 626,334,605.32
  5. Step 5: Solve for x
    x = 626,334,605.32/28,089.76
  6. Step 6: Final answer
    x = 22,297.61

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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.