Home / 19,133.12-28,678.62-8,036.12

Finding the Fourth Proportional to 19,133.12, 28,678.62 and 8,036.12

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Solution

The fourth proportional to 19,133.12, 28,678.62 and 8,036.12 is: 12,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.12 : 28,678.62 = 8,036.12 : x
  2. Step 2: Convert to fraction form
    19,133.12/28,678.62 = 8,036.12/x
  3. Step 3: Cross multiply
    19,133.12x = 28,678.62 × 8,036.12
  4. Step 4: Simplify right side
    19,133.12x = 230,464,831.75
  5. Step 5: Solve for x
    x = 230,464,831.75/19,133.12
  6. Step 6: Final answer
    x = 12,045.33

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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.