Home / 28,727.76-39,644.16-16,152.48

Finding the Fourth Proportional to 28,727.76, 39,644.16 and 16,152.48

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Solution

The fourth proportional to 28,727.76, 39,644.16 and 16,152.48 is: 22,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.76 : 39,644.16 = 16,152.48 : x
  2. Step 2: Convert to fraction form
    28,727.76/39,644.16 = 16,152.48/x
  3. Step 3: Cross multiply
    28,727.76x = 39,644.16 × 16,152.48
  4. Step 4: Simplify right side
    28,727.76x = 640,351,501.52
  5. Step 5: Solve for x
    x = 640,351,501.52/28,727.76
  6. Step 6: Final answer
    x = 22,290.34

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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.