Home / 28,462.05-39,277.17-15,716.54

Finding the Fourth Proportional to 28,462.05, 39,277.17 and 15,716.54

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Solution

The fourth proportional to 28,462.05, 39,277.17 and 15,716.54 is: 21,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.05 : 39,277.17 = 15,716.54 : x
  2. Step 2: Convert to fraction form
    28,462.05/39,277.17 = 15,716.54/x
  3. Step 3: Cross multiply
    28,462.05x = 39,277.17 × 15,716.54
  4. Step 4: Simplify right side
    28,462.05x = 617,301,213.39
  5. Step 5: Solve for x
    x = 617,301,213.39/28,462.05
  6. Step 6: Final answer
    x = 21,688.57

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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.