Home / 36,018.34-54,024.27-12,643.36

Finding the Fourth Proportional to 36,018.34, 54,024.27 and 12,643.36

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Solution

The fourth proportional to 36,018.34, 54,024.27 and 12,643.36 is: 18,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.34 : 54,024.27 = 12,643.36 : x
  2. Step 2: Convert to fraction form
    36,018.34/54,024.27 = 12,643.36/x
  3. Step 3: Cross multiply
    36,018.34x = 54,024.27 × 12,643.36
  4. Step 4: Simplify right side
    36,018.34x = 683,048,111.87
  5. Step 5: Solve for x
    x = 683,048,111.87/36,018.34
  6. Step 6: Final answer
    x = 18,963.90

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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.