Home / 28,800.72-43,166.58-18,810.21

Finding the Fourth Proportional to 28,800.72, 43,166.58 and 18,810.21

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Solution

The fourth proportional to 28,800.72, 43,166.58 and 18,810.21 is: 28,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.72 : 43,166.58 = 18,810.21 : x
  2. Step 2: Convert to fraction form
    28,800.72/43,166.58 = 18,810.21/x
  3. Step 3: Cross multiply
    28,800.72x = 43,166.58 × 18,810.21
  4. Step 4: Simplify right side
    28,800.72x = 811,972,434.78
  5. Step 5: Solve for x
    x = 811,972,434.78/28,800.72
  6. Step 6: Final answer
    x = 28,192.78

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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.