Home / 30,986.12-46,477.55-18,170.42

Finding the Fourth Proportional to 30,986.12, 46,477.55 and 18,170.42

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Solution

The fourth proportional to 30,986.12, 46,477.55 and 18,170.42 is: 27,254.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.12 : 46,477.55 = 18,170.42 : x
  2. Step 2: Convert to fraction form
    30,986.12/46,477.55 = 18,170.42/x
  3. Step 3: Cross multiply
    30,986.12x = 46,477.55 × 18,170.42
  4. Step 4: Simplify right side
    30,986.12x = 844,516,417.11
  5. Step 5: Solve for x
    x = 844,516,417.11/30,986.12
  6. Step 6: Final answer
    x = 27,254.67

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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.