Home / 28,723.56-39,637.74-16,149.12

Finding the Fourth Proportional to 28,723.56, 39,637.74 and 16,149.12

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Solution

The fourth proportional to 28,723.56, 39,637.74 and 16,149.12 is: 22,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.56 : 39,637.74 = 16,149.12 : x
  2. Step 2: Convert to fraction form
    28,723.56/39,637.74 = 16,149.12/x
  3. Step 3: Cross multiply
    28,723.56x = 39,637.74 × 16,149.12
  4. Step 4: Simplify right side
    28,723.56x = 640,114,619.79
  5. Step 5: Solve for x
    x = 640,114,619.79/28,723.56
  6. Step 6: Final answer
    x = 22,285.35

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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.