Home / 28,290.81-39,036.97-16,351.84

Finding the Fourth Proportional to 28,290.81, 39,036.97 and 16,351.84

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Solution

The fourth proportional to 28,290.81, 39,036.97 and 16,351.84 is: 22,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.81 : 39,036.97 = 16,351.84 : x
  2. Step 2: Convert to fraction form
    28,290.81/39,036.97 = 16,351.84/x
  3. Step 3: Cross multiply
    28,290.81x = 39,036.97 × 16,351.84
  4. Step 4: Simplify right side
    28,290.81x = 638,326,287.52
  5. Step 5: Solve for x
    x = 638,326,287.52/28,290.81
  6. Step 6: Final answer
    x = 22,563.03

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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.