Home / 31,290.41-46,935.77-7,916.87

Finding the Fourth Proportional to 31,290.41, 46,935.77 and 7,916.87

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Solution

The fourth proportional to 31,290.41, 46,935.77 and 7,916.87 is: 11,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.41 : 46,935.77 = 7,916.87 : x
  2. Step 2: Convert to fraction form
    31,290.41/46,935.77 = 7,916.87/x
  3. Step 3: Cross multiply
    31,290.41x = 46,935.77 × 7,916.87
  4. Step 4: Simplify right side
    31,290.41x = 371,584,389.44
  5. Step 5: Solve for x
    x = 371,584,389.44/31,290.41
  6. Step 6: Final answer
    x = 11,875.34

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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.