Home / 28,173.06-38,876.13-16,840.31

Finding the Fourth Proportional to 28,173.06, 38,876.13 and 16,840.31

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Solution

The fourth proportional to 28,173.06, 38,876.13 and 16,840.31 is: 23,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.06 : 38,876.13 = 16,840.31 : x
  2. Step 2: Convert to fraction form
    28,173.06/38,876.13 = 16,840.31/x
  3. Step 3: Cross multiply
    28,173.06x = 38,876.13 × 16,840.31
  4. Step 4: Simplify right side
    28,173.06x = 654,685,886.42
  5. Step 5: Solve for x
    x = 654,685,886.42/28,173.06
  6. Step 6: Final answer
    x = 23,238.01

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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.