Home / 28,460.46-39,277.59-15,716.07

Finding the Fourth Proportional to 28,460.46, 39,277.59 and 15,716.07

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Solution

The fourth proportional to 28,460.46, 39,277.59 and 15,716.07 is: 21,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,460.46 : 39,277.59 = 15,716.07 : x
  2. Step 2: Convert to fraction form
    28,460.46/39,277.59 = 15,716.07/x
  3. Step 3: Cross multiply
    28,460.46x = 39,277.59 × 15,716.07
  4. Step 4: Simplify right side
    28,460.46x = 617,289,353.87
  5. Step 5: Solve for x
    x = 617,289,353.87/28,460.46
  6. Step 6: Final answer
    x = 21,689.37

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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.