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Finding the Fourth Proportional to 28,054.78, 42,089.03 and 9,334.77

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Solution

The fourth proportional to 28,054.78, 42,089.03 and 9,334.77 is: 14,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.78 : 42,089.03 = 9,334.77 : x
  2. Step 2: Convert to fraction form
    28,054.78/42,089.03 = 9,334.77/x
  3. Step 3: Cross multiply
    28,054.78x = 42,089.03 × 9,334.77
  4. Step 4: Simplify right side
    28,054.78x = 392,891,534.33
  5. Step 5: Solve for x
    x = 392,891,534.33/28,054.78
  6. Step 6: Final answer
    x = 14,004.44

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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.