Home / 28,033.09-42,048.72-11,388.20

Finding the Fourth Proportional to 28,033.09, 42,048.72 and 11,388.20

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Solution

The fourth proportional to 28,033.09, 42,048.72 and 11,388.20 is: 17,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.09 : 42,048.72 = 11,388.20 : x
  2. Step 2: Convert to fraction form
    28,033.09/42,048.72 = 11,388.20/x
  3. Step 3: Cross multiply
    28,033.09x = 42,048.72 × 11,388.20
  4. Step 4: Simplify right side
    28,033.09x = 478,859,022.86
  5. Step 5: Solve for x
    x = 478,859,022.86/28,033.09
  6. Step 6: Final answer
    x = 17,081.92

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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.