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Finding the Fourth Proportional to 31,201, 46,801.50 and 9,313

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Solution

The fourth proportional to 31,201, 46,801.50 and 9,313 is: 13,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,201 : 46,801.50 = 9,313 : x
  2. Step 2: Convert to fraction form
    31,201/46,801.50 = 9,313/x
  3. Step 3: Cross multiply
    31,201x = 46,801.50 × 9,313
  4. Step 4: Simplify right side
    31,201x = 435,862,369.50
  5. Step 5: Solve for x
    x = 435,862,369.50/31,201
  6. Step 6: Final answer
    x = 13,969.50

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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.