Home / 28,386.53-39,171.52-16,447.74

Finding the Fourth Proportional to 28,386.53, 39,171.52 and 16,447.74

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Solution

The fourth proportional to 28,386.53, 39,171.52 and 16,447.74 is: 22,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.53 : 39,171.52 = 16,447.74 : x
  2. Step 2: Convert to fraction form
    28,386.53/39,171.52 = 16,447.74/x
  3. Step 3: Cross multiply
    28,386.53x = 39,171.52 × 16,447.74
  4. Step 4: Simplify right side
    28,386.53x = 644,282,976.36
  5. Step 5: Solve for x
    x = 644,282,976.36/28,386.53
  6. Step 6: Final answer
    x = 22,696.79

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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.