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Finding the Fourth Proportional to 30,004.76, 45,020.12 and 16,837.40

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Solution

The fourth proportional to 30,004.76, 45,020.12 and 16,837.40 is: 25,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,004.76 : 45,020.12 = 16,837.40 : x
  2. Step 2: Convert to fraction form
    30,004.76/45,020.12 = 16,837.40/x
  3. Step 3: Cross multiply
    30,004.76x = 45,020.12 × 16,837.40
  4. Step 4: Simplify right side
    30,004.76x = 758,021,768.49
  5. Step 5: Solve for x
    x = 758,021,768.49/30,004.76
  6. Step 6: Final answer
    x = 25,263.38

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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.