Home / 39,057.60-53,899.62-21,152.55

Finding the Fourth Proportional to 39,057.60, 53,899.62 and 21,152.55

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Solution

The fourth proportional to 39,057.60, 53,899.62 and 21,152.55 is: 29,190.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,057.60 : 53,899.62 = 21,152.55 : x
  2. Step 2: Convert to fraction form
    39,057.60/53,899.62 = 21,152.55/x
  3. Step 3: Cross multiply
    39,057.60x = 53,899.62 × 21,152.55
  4. Step 4: Simplify right side
    39,057.60x = 1,140,114,407.03
  5. Step 5: Solve for x
    x = 1,140,114,407.03/39,057.60
  6. Step 6: Final answer
    x = 29,190.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.