Home / 31,726.89-47,581.08-10,664.55

Finding the Fourth Proportional to 31,726.89, 47,581.08 and 10,664.55

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Solution

The fourth proportional to 31,726.89, 47,581.08 and 10,664.55 is: 15,993.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.89 : 47,581.08 = 10,664.55 : x
  2. Step 2: Convert to fraction form
    31,726.89/47,581.08 = 10,664.55/x
  3. Step 3: Cross multiply
    31,726.89x = 47,581.08 × 10,664.55
  4. Step 4: Simplify right side
    31,726.89x = 507,430,806.71
  5. Step 5: Solve for x
    x = 507,430,806.71/31,726.89
  6. Step 6: Final answer
    x = 15,993.71

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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.