Home / 30,455.14-45,682.72-16,421.78

Finding the Fourth Proportional to 30,455.14, 45,682.72 and 16,421.78

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Solution

The fourth proportional to 30,455.14, 45,682.72 and 16,421.78 is: 24,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.14 : 45,682.72 = 16,421.78 : x
  2. Step 2: Convert to fraction form
    30,455.14/45,682.72 = 16,421.78/x
  3. Step 3: Cross multiply
    30,455.14x = 45,682.72 × 16,421.78
  4. Step 4: Simplify right side
    30,455.14x = 750,191,577.64
  5. Step 5: Solve for x
    x = 750,191,577.64/30,455.14
  6. Step 6: Final answer
    x = 24,632.68

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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.