Home / 30,135.64-45,161.34-25,670.02

Finding the Fourth Proportional to 30,135.64, 45,161.34 and 25,670.02

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Solution

The fourth proportional to 30,135.64, 45,161.34 and 25,670.02 is: 38,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.64 : 45,161.34 = 25,670.02 : x
  2. Step 2: Convert to fraction form
    30,135.64/45,161.34 = 25,670.02/x
  3. Step 3: Cross multiply
    30,135.64x = 45,161.34 × 25,670.02
  4. Step 4: Simplify right side
    30,135.64x = 1,159,292,501.03
  5. Step 5: Solve for x
    x = 1,159,292,501.03/30,135.64
  6. Step 6: Final answer
    x = 38,469.15

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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.