Home / 28,716.84-39,629.19-15,969.68

Finding the Fourth Proportional to 28,716.84, 39,629.19 and 15,969.68

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Solution

The fourth proportional to 28,716.84, 39,629.19 and 15,969.68 is: 22,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.84 : 39,629.19 = 15,969.68 : x
  2. Step 2: Convert to fraction form
    28,716.84/39,629.19 = 15,969.68/x
  3. Step 3: Cross multiply
    28,716.84x = 39,629.19 × 15,969.68
  4. Step 4: Simplify right side
    28,716.84x = 632,865,284.81
  5. Step 5: Solve for x
    x = 632,865,284.81/28,716.84
  6. Step 6: Final answer
    x = 22,038.12

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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.