Home / 18,018.98-24,852.51-15,505.30

Finding the Fourth Proportional to 18,018.98, 24,852.51 and 15,505.30

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Solution

The fourth proportional to 18,018.98, 24,852.51 and 15,505.30 is: 21,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.98 : 24,852.51 = 15,505.30 : x
  2. Step 2: Convert to fraction form
    18,018.98/24,852.51 = 15,505.30/x
  3. Step 3: Cross multiply
    18,018.98x = 24,852.51 × 15,505.30
  4. Step 4: Simplify right side
    18,018.98x = 385,345,623.30
  5. Step 5: Solve for x
    x = 385,345,623.30/18,018.98
  6. Step 6: Final answer
    x = 21,385.54

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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.