Home / 21,240.48-29,234.88-19,520.04

Finding the Fourth Proportional to 21,240.48, 29,234.88 and 19,520.04

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Solution

The fourth proportional to 21,240.48, 29,234.88 and 19,520.04 is: 26,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.48 : 29,234.88 = 19,520.04 : x
  2. Step 2: Convert to fraction form
    21,240.48/29,234.88 = 19,520.04/x
  3. Step 3: Cross multiply
    21,240.48x = 29,234.88 × 19,520.04
  4. Step 4: Simplify right side
    21,240.48x = 570,666,027.00
  5. Step 5: Solve for x
    x = 570,666,027.00/21,240.48
  6. Step 6: Final answer
    x = 26,866.91

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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.