Home / 21,270.00-29,347.58-17,879.90

Finding the Fourth Proportional to 21,270.00, 29,347.58 and 17,879.90

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Solution

The fourth proportional to 21,270.00, 29,347.58 and 17,879.90 is: 24,670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.00 : 29,347.58 = 17,879.90 : x
  2. Step 2: Convert to fraction form
    21,270.00/29,347.58 = 17,879.90/x
  3. Step 3: Cross multiply
    21,270.00x = 29,347.58 × 17,879.90
  4. Step 4: Simplify right side
    21,270.00x = 524,731,559.50
  5. Step 5: Solve for x
    x = 524,731,559.50/21,270.00
  6. Step 6: Final answer
    x = 24,670.04

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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.