Home / 28,054.56-38,720.30-16,724.79

Finding the Fourth Proportional to 28,054.56, 38,720.30 and 16,724.79

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Solution

The fourth proportional to 28,054.56, 38,720.30 and 16,724.79 is: 23,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.56 : 38,720.30 = 16,724.79 : x
  2. Step 2: Convert to fraction form
    28,054.56/38,720.30 = 16,724.79/x
  3. Step 3: Cross multiply
    28,054.56x = 38,720.30 × 16,724.79
  4. Step 4: Simplify right side
    28,054.56x = 647,588,886.24
  5. Step 5: Solve for x
    x = 647,588,886.24/28,054.56
  6. Step 6: Final answer
    x = 23,083.20

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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.