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Finding the Fourth Proportional to 30,009.96, 45,010.08 and 16,887.96

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Solution

The fourth proportional to 30,009.96, 45,010.08 and 16,887.96 is: 25,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.96 : 45,010.08 = 16,887.96 : x
  2. Step 2: Convert to fraction form
    30,009.96/45,010.08 = 16,887.96/x
  3. Step 3: Cross multiply
    30,009.96x = 45,010.08 × 16,887.96
  4. Step 4: Simplify right side
    30,009.96x = 760,128,430.64
  5. Step 5: Solve for x
    x = 760,128,430.64/30,009.96
  6. Step 6: Final answer
    x = 25,329.21

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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.