Home / 31,141.03-46,688.92-12,415.45

Finding the Fourth Proportional to 31,141.03, 46,688.92 and 12,415.45

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Solution

The fourth proportional to 31,141.03, 46,688.92 and 12,415.45 is: 18,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.03 : 46,688.92 = 12,415.45 : x
  2. Step 2: Convert to fraction form
    31,141.03/46,688.92 = 12,415.45/x
  3. Step 3: Cross multiply
    31,141.03x = 46,688.92 × 12,415.45
  4. Step 4: Simplify right side
    31,141.03x = 579,664,040.37
  5. Step 5: Solve for x
    x = 579,664,040.37/31,141.03
  6. Step 6: Final answer
    x = 18,614.16

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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.