Home / 31,141.18-46,689.14-12,415.60

Finding the Fourth Proportional to 31,141.18, 46,689.14 and 12,415.60

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Solution

The fourth proportional to 31,141.18, 46,689.14 and 12,415.60 is: 18,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.18 : 46,689.14 = 12,415.60 : x
  2. Step 2: Convert to fraction form
    31,141.18/46,689.14 = 12,415.60/x
  3. Step 3: Cross multiply
    31,141.18x = 46,689.14 × 12,415.60
  4. Step 4: Simplify right side
    31,141.18x = 579,673,817.54
  5. Step 5: Solve for x
    x = 579,673,817.54/31,141.18
  6. Step 6: Final answer
    x = 18,614.38

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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.