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Finding the Fourth Proportional to 28,066, 42,094.32 and 14,011.12

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Solution

The fourth proportional to 28,066, 42,094.32 and 14,011.12 is: 21,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066 : 42,094.32 = 14,011.12 : x
  2. Step 2: Convert to fraction form
    28,066/42,094.32 = 14,011.12/x
  3. Step 3: Cross multiply
    28,066x = 42,094.32 × 14,011.12
  4. Step 4: Simplify right side
    28,066x = 589,788,568.84
  5. Step 5: Solve for x
    x = 589,788,568.84/28,066
  6. Step 6: Final answer
    x = 21,014.34

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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.