Home / 27,009.99-40,465.78-19,911.81

Finding the Fourth Proportional to 27,009.99, 40,465.78 and 19,911.81

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Solution

The fourth proportional to 27,009.99, 40,465.78 and 19,911.81 is: 29,831.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,009.99 : 40,465.78 = 19,911.81 : x
  2. Step 2: Convert to fraction form
    27,009.99/40,465.78 = 19,911.81/x
  3. Step 3: Cross multiply
    27,009.99x = 40,465.78 × 19,911.81
  4. Step 4: Simplify right side
    27,009.99x = 805,746,922.86
  5. Step 5: Solve for x
    x = 805,746,922.86/27,009.99
  6. Step 6: Final answer
    x = 29,831.44

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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.