Home / 21,569.26-29,773.60-12,619.57

Finding the Fourth Proportional to 21,569.26, 29,773.60 and 12,619.57

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Solution

The fourth proportional to 21,569.26, 29,773.60 and 12,619.57 is: 17,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.26 : 29,773.60 = 12,619.57 : x
  2. Step 2: Convert to fraction form
    21,569.26/29,773.60 = 12,619.57/x
  3. Step 3: Cross multiply
    21,569.26x = 29,773.60 × 12,619.57
  4. Step 4: Simplify right side
    21,569.26x = 375,730,029.35
  5. Step 5: Solve for x
    x = 375,730,029.35/21,569.26
  6. Step 6: Final answer
    x = 17,419.70

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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.