Home / 30,785.37-46,180.68-9,719.78

Finding the Fourth Proportional to 30,785.37, 46,180.68 and 9,719.78

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Solution

The fourth proportional to 30,785.37, 46,180.68 and 9,719.78 is: 14,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785.37 : 46,180.68 = 9,719.78 : x
  2. Step 2: Convert to fraction form
    30,785.37/46,180.68 = 9,719.78/x
  3. Step 3: Cross multiply
    30,785.37x = 46,180.68 × 9,719.78
  4. Step 4: Simplify right side
    30,785.37x = 448,865,818.95
  5. Step 5: Solve for x
    x = 448,865,818.95/30,785.37
  6. Step 6: Final answer
    x = 14,580.49

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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.