Home / 30,076.28-45,089.05-18,958.46

Finding the Fourth Proportional to 30,076.28, 45,089.05 and 18,958.46

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Solution

The fourth proportional to 30,076.28, 45,089.05 and 18,958.46 is: 28,421.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.28 : 45,089.05 = 18,958.46 : x
  2. Step 2: Convert to fraction form
    30,076.28/45,089.05 = 18,958.46/x
  3. Step 3: Cross multiply
    30,076.28x = 45,089.05 × 18,958.46
  4. Step 4: Simplify right side
    30,076.28x = 854,818,856.07
  5. Step 5: Solve for x
    x = 854,818,856.07/30,076.28
  6. Step 6: Final answer
    x = 28,421.69

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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.