Home / 51,228.08-76,842.12-13,788.24

Finding the Fourth Proportional to 51,228.08, 76,842.12 and 13,788.24

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Solution

The fourth proportional to 51,228.08, 76,842.12 and 13,788.24 is: 20,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,228.08 : 76,842.12 = 13,788.24 : x
  2. Step 2: Convert to fraction form
    51,228.08/76,842.12 = 13,788.24/x
  3. Step 3: Cross multiply
    51,228.08x = 76,842.12 × 13,788.24
  4. Step 4: Simplify right side
    51,228.08x = 1,059,517,592.67
  5. Step 5: Solve for x
    x = 1,059,517,592.67/51,228.08
  6. Step 6: Final answer
    x = 20,682.36

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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.