Home / 21,489.08-29,653.02-12,537.36

Finding the Fourth Proportional to 21,489.08, 29,653.02 and 12,537.36

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Solution

The fourth proportional to 21,489.08, 29,653.02 and 12,537.36 is: 17,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.08 : 29,653.02 = 12,537.36 : x
  2. Step 2: Convert to fraction form
    21,489.08/29,653.02 = 12,537.36/x
  3. Step 3: Cross multiply
    21,489.08x = 29,653.02 × 12,537.36
  4. Step 4: Simplify right side
    21,489.08x = 371,770,586.83
  5. Step 5: Solve for x
    x = 371,770,586.83/21,489.08
  6. Step 6: Final answer
    x = 17,300.44

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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.