Home / 21,609.02-29,752.59-18,372.48

Finding the Fourth Proportional to 21,609.02, 29,752.59 and 18,372.48

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Solution

The fourth proportional to 21,609.02, 29,752.59 and 18,372.48 is: 25,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.02 : 29,752.59 = 18,372.48 : x
  2. Step 2: Convert to fraction form
    21,609.02/29,752.59 = 18,372.48/x
  3. Step 3: Cross multiply
    21,609.02x = 29,752.59 × 18,372.48
  4. Step 4: Simplify right side
    21,609.02x = 546,628,813.31
  5. Step 5: Solve for x
    x = 546,628,813.31/21,609.02
  6. Step 6: Final answer
    x = 25,296.32

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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.