Home / 28,174.36-38,880.66-15,598.84

Finding the Fourth Proportional to 28,174.36, 38,880.66 and 15,598.84

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Solution

The fourth proportional to 28,174.36, 38,880.66 and 15,598.84 is: 21,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.36 : 38,880.66 = 15,598.84 : x
  2. Step 2: Convert to fraction form
    28,174.36/38,880.66 = 15,598.84/x
  3. Step 3: Cross multiply
    28,174.36x = 38,880.66 × 15,598.84
  4. Step 4: Simplify right side
    28,174.36x = 606,493,194.43
  5. Step 5: Solve for x
    x = 606,493,194.43/28,174.36
  6. Step 6: Final answer
    x = 21,526.42

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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.