Home / 14,384.40-21,563.80-12,829.20

Finding the Fourth Proportional to 14,384.40, 21,563.80 and 12,829.20

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Solution

The fourth proportional to 14,384.40, 21,563.80 and 12,829.20 is: 19,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,384.40 : 21,563.80 = 12,829.20 : x
  2. Step 2: Convert to fraction form
    14,384.40/21,563.80 = 12,829.20/x
  3. Step 3: Cross multiply
    14,384.40x = 21,563.80 × 12,829.20
  4. Step 4: Simplify right side
    14,384.40x = 276,646,302.96
  5. Step 5: Solve for x
    x = 276,646,302.96/14,384.40
  6. Step 6: Final answer
    x = 19,232.38

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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.