Home / 30,416.72-45,629.68-13,776.36

Finding the Fourth Proportional to 30,416.72, 45,629.68 and 13,776.36

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Solution

The fourth proportional to 30,416.72, 45,629.68 and 13,776.36 is: 20,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.72 : 45,629.68 = 13,776.36 : x
  2. Step 2: Convert to fraction form
    30,416.72/45,629.68 = 13,776.36/x
  3. Step 3: Cross multiply
    30,416.72x = 45,629.68 × 13,776.36
  4. Step 4: Simplify right side
    30,416.72x = 628,610,898.36
  5. Step 5: Solve for x
    x = 628,610,898.36/30,416.72
  6. Step 6: Final answer
    x = 20,666.62

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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.