Home / 21,395.48-32,099.26-18,738.24

Finding the Fourth Proportional to 21,395.48, 32,099.26 and 18,738.24

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Solution

The fourth proportional to 21,395.48, 32,099.26 and 18,738.24 is: 28,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.48 : 32,099.26 = 18,738.24 : x
  2. Step 2: Convert to fraction form
    21,395.48/32,099.26 = 18,738.24/x
  3. Step 3: Cross multiply
    21,395.48x = 32,099.26 × 18,738.24
  4. Step 4: Simplify right side
    21,395.48x = 601,483,637.70
  5. Step 5: Solve for x
    x = 601,483,637.70/21,395.48
  6. Step 6: Final answer
    x = 28,112.65

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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.