Home / 39,942.81-59,916.47-10,359.86

Finding the Fourth Proportional to 39,942.81, 59,916.47 and 10,359.86

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Solution

The fourth proportional to 39,942.81, 59,916.47 and 10,359.86 is: 15,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.81 : 59,916.47 = 10,359.86 : x
  2. Step 2: Convert to fraction form
    39,942.81/59,916.47 = 10,359.86/x
  3. Step 3: Cross multiply
    39,942.81x = 59,916.47 × 10,359.86
  4. Step 4: Simplify right side
    39,942.81x = 620,725,889.51
  5. Step 5: Solve for x
    x = 620,725,889.51/39,942.81
  6. Step 6: Final answer
    x = 15,540.37

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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.