Home / 28,762.20-43,143.27-9,042.48

Finding the Fourth Proportional to 28,762.20, 43,143.27 and 9,042.48

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Solution

The fourth proportional to 28,762.20, 43,143.27 and 9,042.48 is: 13,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.20 : 43,143.27 = 9,042.48 : x
  2. Step 2: Convert to fraction form
    28,762.20/43,143.27 = 9,042.48/x
  3. Step 3: Cross multiply
    28,762.20x = 43,143.27 × 9,042.48
  4. Step 4: Simplify right side
    28,762.20x = 390,122,156.11
  5. Step 5: Solve for x
    x = 390,122,156.11/28,762.20
  6. Step 6: Final answer
    x = 13,563.71

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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.