Home / 30,790.32-46,185.50-7,416.78

Finding the Fourth Proportional to 30,790.32, 46,185.50 and 7,416.78

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Solution

The fourth proportional to 30,790.32, 46,185.50 and 7,416.78 is: 11,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.32 : 46,185.50 = 7,416.78 : x
  2. Step 2: Convert to fraction form
    30,790.32/46,185.50 = 7,416.78/x
  3. Step 3: Cross multiply
    30,790.32x = 46,185.50 × 7,416.78
  4. Step 4: Simplify right side
    30,790.32x = 342,547,692.69
  5. Step 5: Solve for x
    x = 342,547,692.69/30,790.32
  6. Step 6: Final answer
    x = 11,125.17

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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.