Home / 28,069.34-38,682.10-20,097.72

Finding the Fourth Proportional to 28,069.34, 38,682.10 and 20,097.72

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Solution

The fourth proportional to 28,069.34, 38,682.10 and 20,097.72 is: 27,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.34 : 38,682.10 = 20,097.72 : x
  2. Step 2: Convert to fraction form
    28,069.34/38,682.10 = 20,097.72/x
  3. Step 3: Cross multiply
    28,069.34x = 38,682.10 × 20,097.72
  4. Step 4: Simplify right side
    28,069.34x = 777,422,014.81
  5. Step 5: Solve for x
    x = 777,422,014.81/28,069.34
  6. Step 6: Final answer
    x = 27,696.48

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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.