Home / 27,690.24-41,477.76-18,777.60

Finding the Fourth Proportional to 27,690.24, 41,477.76 and 18,777.60

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Solution

The fourth proportional to 27,690.24, 41,477.76 and 18,777.60 is: 28,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,690.24 : 41,477.76 = 18,777.60 : x
  2. Step 2: Convert to fraction form
    27,690.24/41,477.76 = 18,777.60/x
  3. Step 3: Cross multiply
    27,690.24x = 41,477.76 × 18,777.60
  4. Step 4: Simplify right side
    27,690.24x = 778,852,786.18
  5. Step 5: Solve for x
    x = 778,852,786.18/27,690.24
  6. Step 6: Final answer
    x = 28,127.34

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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.