Home / 28,182.72-38,890.08-16,245.60

Finding the Fourth Proportional to 28,182.72, 38,890.08 and 16,245.60

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Solution

The fourth proportional to 28,182.72, 38,890.08 and 16,245.60 is: 22,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.72 : 38,890.08 = 16,245.60 : x
  2. Step 2: Convert to fraction form
    28,182.72/38,890.08 = 16,245.60/x
  3. Step 3: Cross multiply
    28,182.72x = 38,890.08 × 16,245.60
  4. Step 4: Simplify right side
    28,182.72x = 631,792,683.65
  5. Step 5: Solve for x
    x = 631,792,683.65/28,182.72
  6. Step 6: Final answer
    x = 22,417.73

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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.