Home / 28,647.12-39,532.92-16,071.60

Finding the Fourth Proportional to 28,647.12, 39,532.92 and 16,071.60

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Solution

The fourth proportional to 28,647.12, 39,532.92 and 16,071.60 is: 22,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.12 : 39,532.92 = 16,071.60 : x
  2. Step 2: Convert to fraction form
    28,647.12/39,532.92 = 16,071.60/x
  3. Step 3: Cross multiply
    28,647.12x = 39,532.92 × 16,071.60
  4. Step 4: Simplify right side
    28,647.12x = 635,357,277.07
  5. Step 5: Solve for x
    x = 635,357,277.07/28,647.12
  6. Step 6: Final answer
    x = 22,178.75

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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.