Home / 31,729.48-47,578.14-10,662.04

Finding the Fourth Proportional to 31,729.48, 47,578.14 and 10,662.04

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Solution

The fourth proportional to 31,729.48, 47,578.14 and 10,662.04 is: 15,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.48 : 47,578.14 = 10,662.04 : x
  2. Step 2: Convert to fraction form
    31,729.48/47,578.14 = 10,662.04/x
  3. Step 3: Cross multiply
    31,729.48x = 47,578.14 × 10,662.04
  4. Step 4: Simplify right side
    31,729.48x = 507,280,031.81
  5. Step 5: Solve for x
    x = 507,280,031.81/31,729.48
  6. Step 6: Final answer
    x = 15,987.66

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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.