Home / 28,086.76-38,761.77-16,153.84

Finding the Fourth Proportional to 28,086.76, 38,761.77 and 16,153.84

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Solution

The fourth proportional to 28,086.76, 38,761.77 and 16,153.84 is: 22,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.76 : 38,761.77 = 16,153.84 : x
  2. Step 2: Convert to fraction form
    28,086.76/38,761.77 = 16,153.84/x
  3. Step 3: Cross multiply
    28,086.76x = 38,761.77 × 16,153.84
  4. Step 4: Simplify right side
    28,086.76x = 626,151,430.70
  5. Step 5: Solve for x
    x = 626,151,430.70/28,086.76
  6. Step 6: Final answer
    x = 22,293.47

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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.