Home / 30,087.86-45,138.02-9,027.05

Finding the Fourth Proportional to 30,087.86, 45,138.02 and 9,027.05

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Solution

The fourth proportional to 30,087.86, 45,138.02 and 9,027.05 is: 13,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.86 : 45,138.02 = 9,027.05 : x
  2. Step 2: Convert to fraction form
    30,087.86/45,138.02 = 9,027.05/x
  3. Step 3: Cross multiply
    30,087.86x = 45,138.02 × 9,027.05
  4. Step 4: Simplify right side
    30,087.86x = 407,462,892.62
  5. Step 5: Solve for x
    x = 407,462,892.62/30,087.86
  6. Step 6: Final answer
    x = 13,542.44

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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.