Home / 15,576.87-21,495.66-14,322.99

Finding the Fourth Proportional to 15,576.87, 21,495.66 and 14,322.99

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Solution

The fourth proportional to 15,576.87, 21,495.66 and 14,322.99 is: 19,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.87 : 21,495.66 = 14,322.99 : x
  2. Step 2: Convert to fraction form
    15,576.87/21,495.66 = 14,322.99/x
  3. Step 3: Cross multiply
    15,576.87x = 21,495.66 × 14,322.99
  4. Step 4: Simplify right side
    15,576.87x = 307,882,123.22
  5. Step 5: Solve for x
    x = 307,882,123.22/15,576.87
  6. Step 6: Final answer
    x = 19,765.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.