Home / 30,811.64-46,217.46-7,438.08

Finding the Fourth Proportional to 30,811.64, 46,217.46 and 7,438.08

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Solution

The fourth proportional to 30,811.64, 46,217.46 and 7,438.08 is: 11,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.64 : 46,217.46 = 7,438.08 : x
  2. Step 2: Convert to fraction form
    30,811.64/46,217.46 = 7,438.08/x
  3. Step 3: Cross multiply
    30,811.64x = 46,217.46 × 7,438.08
  4. Step 4: Simplify right side
    30,811.64x = 343,769,085.19
  5. Step 5: Solve for x
    x = 343,769,085.19/30,811.64
  6. Step 6: Final answer
    x = 11,157.12

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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.