Home / 38,145.24-52,637.58-21,375

Finding the Fourth Proportional to 38,145.24, 52,637.58 and 21,375

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Solution

The fourth proportional to 38,145.24, 52,637.58 and 21,375 is: 29,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.24 : 52,637.58 = 21,375 : x
  2. Step 2: Convert to fraction form
    38,145.24/52,637.58 = 21,375/x
  3. Step 3: Cross multiply
    38,145.24x = 52,637.58 × 21,375
  4. Step 4: Simplify right side
    38,145.24x = 1,125,128,272.50
  5. Step 5: Solve for x
    x = 1,125,128,272.50/38,145.24
  6. Step 6: Final answer
    x = 29,495.90

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1.5x scale

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.