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Finding the Fourth Proportional to 31,260, 46,890 and 9,372

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Solution

The fourth proportional to 31,260, 46,890 and 9,372 is: 14,058

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260 : 46,890 = 9,372 : x
  2. Step 2: Convert to fraction form
    31,260/46,890 = 9,372/x
  3. Step 3: Cross multiply
    31,260x = 46,890 × 9,372
  4. Step 4: Simplify right side
    31,260x = 439,453,080
  5. Step 5: Solve for x
    x = 439,453,080/31,260
  6. Step 6: Final answer
    x = 14,058

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.