Home / 27,153.48-40,656.30-20,559.72

Finding the Fourth Proportional to 27,153.48, 40,656.30 and 20,559.72

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Solution

The fourth proportional to 27,153.48, 40,656.30 and 20,559.72 is: 30,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,153.48 : 40,656.30 = 20,559.72 : x
  2. Step 2: Convert to fraction form
    27,153.48/40,656.30 = 20,559.72/x
  3. Step 3: Cross multiply
    27,153.48x = 40,656.30 × 20,559.72
  4. Step 4: Simplify right side
    27,153.48x = 835,882,144.24
  5. Step 5: Solve for x
    x = 835,882,144.24/27,153.48
  6. Step 6: Final answer
    x = 30,783.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.