Home / 30,054.98-45,076.32-18,983.30

Finding the Fourth Proportional to 30,054.98, 45,076.32 and 18,983.30

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Solution

The fourth proportional to 30,054.98, 45,076.32 and 18,983.30 is: 28,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.98 : 45,076.32 = 18,983.30 : x
  2. Step 2: Convert to fraction form
    30,054.98/45,076.32 = 18,983.30/x
  3. Step 3: Cross multiply
    30,054.98x = 45,076.32 × 18,983.30
  4. Step 4: Simplify right side
    30,054.98x = 855,697,080.07
  5. Step 5: Solve for x
    x = 855,697,080.07/30,054.98
  6. Step 6: Final answer
    x = 28,471.06

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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.