Home / 31,916.59-47,896.77-11,140.09

Finding the Fourth Proportional to 31,916.59, 47,896.77 and 11,140.09

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Solution

The fourth proportional to 31,916.59, 47,896.77 and 11,140.09 is: 16,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.59 : 47,896.77 = 11,140.09 : x
  2. Step 2: Convert to fraction form
    31,916.59/47,896.77 = 11,140.09/x
  3. Step 3: Cross multiply
    31,916.59x = 47,896.77 × 11,140.09
  4. Step 4: Simplify right side
    31,916.59x = 533,574,328.51
  5. Step 5: Solve for x
    x = 533,574,328.51/31,916.59
  6. Step 6: Final answer
    x = 16,717.77

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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.