Home / 28,344.54-39,114.42-15,769.02

Finding the Fourth Proportional to 28,344.54, 39,114.42 and 15,769.02

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Solution

The fourth proportional to 28,344.54, 39,114.42 and 15,769.02 is: 21,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.54 : 39,114.42 = 15,769.02 : x
  2. Step 2: Convert to fraction form
    28,344.54/39,114.42 = 15,769.02/x
  3. Step 3: Cross multiply
    28,344.54x = 39,114.42 × 15,769.02
  4. Step 4: Simplify right side
    28,344.54x = 616,796,071.27
  5. Step 5: Solve for x
    x = 616,796,071.27/28,344.54
  6. Step 6: Final answer
    x = 21,760.67

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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.