Home / 30,785.99-46,112.14-18,903.69

Finding the Fourth Proportional to 30,785.99, 46,112.14 and 18,903.69

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Solution

The fourth proportional to 30,785.99, 46,112.14 and 18,903.69 is: 28,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785.99 : 46,112.14 = 18,903.69 : x
  2. Step 2: Convert to fraction form
    30,785.99/46,112.14 = 18,903.69/x
  3. Step 3: Cross multiply
    30,785.99x = 46,112.14 × 18,903.69
  4. Step 4: Simplify right side
    30,785.99x = 871,689,623.43
  5. Step 5: Solve for x
    x = 871,689,623.43/30,785.99
  6. Step 6: Final answer
    x = 28,314.50

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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.