Home / 21,617.67-29,805.53-18,037.88

Finding the Fourth Proportional to 21,617.67, 29,805.53 and 18,037.88

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Solution

The fourth proportional to 21,617.67, 29,805.53 and 18,037.88 is: 24,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.67 : 29,805.53 = 18,037.88 : x
  2. Step 2: Convert to fraction form
    21,617.67/29,805.53 = 18,037.88/x
  3. Step 3: Cross multiply
    21,617.67x = 29,805.53 × 18,037.88
  4. Step 4: Simplify right side
    21,617.67x = 537,628,573.48
  5. Step 5: Solve for x
    x = 537,628,573.48/21,617.67
  6. Step 6: Final answer
    x = 24,869.87

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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.