Home / 31,292.78-46,935.51-12,572.06

Finding the Fourth Proportional to 31,292.78, 46,935.51 and 12,572.06

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Solution

The fourth proportional to 31,292.78, 46,935.51 and 12,572.06 is: 18,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.78 : 46,935.51 = 12,572.06 : x
  2. Step 2: Convert to fraction form
    31,292.78/46,935.51 = 12,572.06/x
  3. Step 3: Cross multiply
    31,292.78x = 46,935.51 × 12,572.06
  4. Step 4: Simplify right side
    31,292.78x = 590,075,813.17
  5. Step 5: Solve for x
    x = 590,075,813.17/31,292.78
  6. Step 6: Final answer
    x = 18,856.62

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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.