Home / 28,007.74-42,018.09-16,330.78

Finding the Fourth Proportional to 28,007.74, 42,018.09 and 16,330.78

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Solution

The fourth proportional to 28,007.74, 42,018.09 and 16,330.78 is: 24,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.74 : 42,018.09 = 16,330.78 : x
  2. Step 2: Convert to fraction form
    28,007.74/42,018.09 = 16,330.78/x
  3. Step 3: Cross multiply
    28,007.74x = 42,018.09 × 16,330.78
  4. Step 4: Simplify right side
    28,007.74x = 686,188,183.81
  5. Step 5: Solve for x
    x = 686,188,183.81/28,007.74
  6. Step 6: Final answer
    x = 24,499.95

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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.