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Finding the Fourth Proportional to 35,682.30, 53,458.65 and 21,815.10

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Solution

The fourth proportional to 35,682.30, 53,458.65 and 21,815.10 is: 32,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,682.30 : 53,458.65 = 21,815.10 : x
  2. Step 2: Convert to fraction form
    35,682.30/53,458.65 = 21,815.10/x
  3. Step 3: Cross multiply
    35,682.30x = 53,458.65 × 21,815.10
  4. Step 4: Simplify right side
    35,682.30x = 1,166,205,795.62
  5. Step 5: Solve for x
    x = 1,166,205,795.62/35,682.30
  6. Step 6: Final answer
    x = 32,683.03

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1.5x scale

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.