Home / 14,144.87-21,214.58-13,442.40

Finding the Fourth Proportional to 14,144.87, 21,214.58 and 13,442.40

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Solution

The fourth proportional to 14,144.87, 21,214.58 and 13,442.40 is: 20,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.87 : 21,214.58 = 13,442.40 : x
  2. Step 2: Convert to fraction form
    14,144.87/21,214.58 = 13,442.40/x
  3. Step 3: Cross multiply
    14,144.87x = 21,214.58 × 13,442.40
  4. Step 4: Simplify right side
    14,144.87x = 285,174,802.98
  5. Step 5: Solve for x
    x = 285,174,802.98/14,144.87
  6. Step 6: Final answer
    x = 20,161.00

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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.