Home / 19,042.24-26,289.84-12,429.76

Finding the Fourth Proportional to 19,042.24, 26,289.84 and 12,429.76

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Solution

The fourth proportional to 19,042.24, 26,289.84 and 12,429.76 is: 17,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.24 : 26,289.84 = 12,429.76 : x
  2. Step 2: Convert to fraction form
    19,042.24/26,289.84 = 12,429.76/x
  3. Step 3: Cross multiply
    19,042.24x = 26,289.84 × 12,429.76
  4. Step 4: Simplify right side
    19,042.24x = 326,776,401.64
  5. Step 5: Solve for x
    x = 326,776,401.64/19,042.24
  6. Step 6: Final answer
    x = 17,160.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.