Home / 28,069.36-38,735.74-15,494.10

Finding the Fourth Proportional to 28,069.36, 38,735.74 and 15,494.10

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Solution

The fourth proportional to 28,069.36, 38,735.74 and 15,494.10 is: 21,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.36 : 38,735.74 = 15,494.10 : x
  2. Step 2: Convert to fraction form
    28,069.36/38,735.74 = 15,494.10/x
  3. Step 3: Cross multiply
    28,069.36x = 38,735.74 × 15,494.10
  4. Step 4: Simplify right side
    28,069.36x = 600,175,429.13
  5. Step 5: Solve for x
    x = 600,175,429.13/28,069.36
  6. Step 6: Final answer
    x = 21,381.87

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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.