Home / 14,436.05-21,688.74-13,639.46

Finding the Fourth Proportional to 14,436.05, 21,688.74 and 13,639.46

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Solution

The fourth proportional to 14,436.05, 21,688.74 and 13,639.46 is: 20,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.05 : 21,688.74 = 13,639.46 : x
  2. Step 2: Convert to fraction form
    14,436.05/21,688.74 = 13,639.46/x
  3. Step 3: Cross multiply
    14,436.05x = 21,688.74 × 13,639.46
  4. Step 4: Simplify right side
    14,436.05x = 295,822,593.24
  5. Step 5: Solve for x
    x = 295,822,593.24/14,436.05
  6. Step 6: Final answer
    x = 20,491.94

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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.