Home / 42,858.60-64,297.08-21,801.57

Finding the Fourth Proportional to 42,858.60, 64,297.08 and 21,801.57

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Solution

The fourth proportional to 42,858.60, 64,297.08 and 21,801.57 is: 32,707.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.60 : 64,297.08 = 21,801.57 : x
  2. Step 2: Convert to fraction form
    42,858.60/64,297.08 = 21,801.57/x
  3. Step 3: Cross multiply
    42,858.60x = 64,297.08 × 21,801.57
  4. Step 4: Simplify right side
    42,858.60x = 1,401,777,290.42
  5. Step 5: Solve for x
    x = 1,401,777,290.42/42,858.60
  6. Step 6: Final answer
    x = 32,707.02

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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.