Home / 28,790.29-43,210.05-11,272.42

Finding the Fourth Proportional to 28,790.29, 43,210.05 and 11,272.42

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Solution

The fourth proportional to 28,790.29, 43,210.05 and 11,272.42 is: 16,918.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.29 : 43,210.05 = 11,272.42 : x
  2. Step 2: Convert to fraction form
    28,790.29/43,210.05 = 11,272.42/x
  3. Step 3: Cross multiply
    28,790.29x = 43,210.05 × 11,272.42
  4. Step 4: Simplify right side
    28,790.29x = 487,081,831.82
  5. Step 5: Solve for x
    x = 487,081,831.82/28,790.29
  6. Step 6: Final answer
    x = 16,918.27

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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.