Home / 36,018.02-54,020.55-21,209.60

Finding the Fourth Proportional to 36,018.02, 54,020.55 and 21,209.60

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Solution

The fourth proportional to 36,018.02, 54,020.55 and 21,209.60 is: 31,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.02 : 54,020.55 = 21,209.60 : x
  2. Step 2: Convert to fraction form
    36,018.02/54,020.55 = 21,209.60/x
  3. Step 3: Cross multiply
    36,018.02x = 54,020.55 × 21,209.60
  4. Step 4: Simplify right side
    36,018.02x = 1,145,754,257.28
  5. Step 5: Solve for x
    x = 1,145,754,257.28/36,018.02
  6. Step 6: Final answer
    x = 31,810.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.