Home / 19,649.75-27,132.98-18,225.16

Finding the Fourth Proportional to 19,649.75, 27,132.98 and 18,225.16

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Solution

The fourth proportional to 19,649.75, 27,132.98 and 18,225.16 is: 25,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.75 : 27,132.98 = 18,225.16 : x
  2. Step 2: Convert to fraction form
    19,649.75/27,132.98 = 18,225.16/x
  3. Step 3: Cross multiply
    19,649.75x = 27,132.98 × 18,225.16
  4. Step 4: Simplify right side
    19,649.75x = 494,502,742.82
  5. Step 5: Solve for x
    x = 494,502,742.82/19,649.75
  6. Step 6: Final answer
    x = 25,165.86

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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.