Home / 30,438.15-45,639.41-10,713.03

Finding the Fourth Proportional to 30,438.15, 45,639.41 and 10,713.03

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Solution

The fourth proportional to 30,438.15, 45,639.41 and 10,713.03 is: 16,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.15 : 45,639.41 = 10,713.03 : x
  2. Step 2: Convert to fraction form
    30,438.15/45,639.41 = 10,713.03/x
  3. Step 3: Cross multiply
    30,438.15x = 45,639.41 × 10,713.03
  4. Step 4: Simplify right side
    30,438.15x = 488,936,314.95
  5. Step 5: Solve for x
    x = 488,936,314.95/30,438.15
  6. Step 6: Final answer
    x = 16,063.27

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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.