Home / 21,027.48-31,542.30-5,445.24

Finding the Fourth Proportional to 21,027.48, 31,542.30 and 5,445.24

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Solution

The fourth proportional to 21,027.48, 31,542.30 and 5,445.24 is: 8,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.48 : 31,542.30 = 5,445.24 : x
  2. Step 2: Convert to fraction form
    21,027.48/31,542.30 = 5,445.24/x
  3. Step 3: Cross multiply
    21,027.48x = 31,542.30 × 5,445.24
  4. Step 4: Simplify right side
    21,027.48x = 171,755,393.65
  5. Step 5: Solve for x
    x = 171,755,393.65/21,027.48
  6. Step 6: Final answer
    x = 8,168.14

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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.