Home / 28,812.03-43,218.09-18,995.16

Finding the Fourth Proportional to 28,812.03, 43,218.09 and 18,995.16

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Solution

The fourth proportional to 28,812.03, 43,218.09 and 18,995.16 is: 28,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.03 : 43,218.09 = 18,995.16 : x
  2. Step 2: Convert to fraction form
    28,812.03/43,218.09 = 18,995.16/x
  3. Step 3: Cross multiply
    28,812.03x = 43,218.09 × 18,995.16
  4. Step 4: Simplify right side
    28,812.03x = 820,934,534.44
  5. Step 5: Solve for x
    x = 820,934,534.44/28,812.03
  6. Step 6: Final answer
    x = 28,492.77

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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.