Home / 43,175.53-64,746.28-20,982.34

Finding the Fourth Proportional to 43,175.53, 64,746.28 and 20,982.34

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Solution

The fourth proportional to 43,175.53, 64,746.28 and 20,982.34 is: 31,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,175.53 : 64,746.28 = 20,982.34 : x
  2. Step 2: Convert to fraction form
    43,175.53/64,746.28 = 20,982.34/x
  3. Step 3: Cross multiply
    43,175.53x = 64,746.28 × 20,982.34
  4. Step 4: Simplify right side
    43,175.53x = 1,358,528,460.70
  5. Step 5: Solve for x
    x = 1,358,528,460.70/43,175.53
  6. Step 6: Final answer
    x = 31,465.24

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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.