Home / 28,149.19-38,839.47-16,816.88

Finding the Fourth Proportional to 28,149.19, 38,839.47 and 16,816.88

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Solution

The fourth proportional to 28,149.19, 38,839.47 and 16,816.88 is: 23,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.19 : 38,839.47 = 16,816.88 : x
  2. Step 2: Convert to fraction form
    28,149.19/38,839.47 = 16,816.88/x
  3. Step 3: Cross multiply
    28,149.19x = 38,839.47 × 16,816.88
  4. Step 4: Simplify right side
    28,149.19x = 653,158,706.25
  5. Step 5: Solve for x
    x = 653,158,706.25/28,149.19
  6. Step 6: Final answer
    x = 23,203.46

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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.