Home / 30,516.05-45,719.40-10,782.02

Finding the Fourth Proportional to 30,516.05, 45,719.40 and 10,782.02

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Solution

The fourth proportional to 30,516.05, 45,719.40 and 10,782.02 is: 16,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.05 : 45,719.40 = 10,782.02 : x
  2. Step 2: Convert to fraction form
    30,516.05/45,719.40 = 10,782.02/x
  3. Step 3: Cross multiply
    30,516.05x = 45,719.40 × 10,782.02
  4. Step 4: Simplify right side
    30,516.05x = 492,947,446.51
  5. Step 5: Solve for x
    x = 492,947,446.51/30,516.05
  6. Step 6: Final answer
    x = 16,153.71

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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.