Home / 13,631.02-20,429.43-5,830.66

Finding the Fourth Proportional to 13,631.02, 20,429.43 and 5,830.66

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Solution

The fourth proportional to 13,631.02, 20,429.43 and 5,830.66 is: 8,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.02 : 20,429.43 = 5,830.66 : x
  2. Step 2: Convert to fraction form
    13,631.02/20,429.43 = 5,830.66/x
  3. Step 3: Cross multiply
    13,631.02x = 20,429.43 × 5,830.66
  4. Step 4: Simplify right side
    13,631.02x = 119,117,060.32
  5. Step 5: Solve for x
    x = 119,117,060.32/13,631.02
  6. Step 6: Final answer
    x = 8,738.68

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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.