Home / 30,003.84-45,003.60-18,292.32

Finding the Fourth Proportional to 30,003.84, 45,003.60 and 18,292.32

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Solution

The fourth proportional to 30,003.84, 45,003.60 and 18,292.32 is: 27,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.84 : 45,003.60 = 18,292.32 : x
  2. Step 2: Convert to fraction form
    30,003.84/45,003.60 = 18,292.32/x
  3. Step 3: Cross multiply
    30,003.84x = 45,003.60 × 18,292.32
  4. Step 4: Simplify right side
    30,003.84x = 823,220,252.35
  5. Step 5: Solve for x
    x = 823,220,252.35/30,003.84
  6. Step 6: Final answer
    x = 27,437.16

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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.