Home / 21,040.66-29,053.17-20,089.31

Finding the Fourth Proportional to 21,040.66, 29,053.17 and 20,089.31

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Solution

The fourth proportional to 21,040.66, 29,053.17 and 20,089.31 is: 27,739.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.66 : 29,053.17 = 20,089.31 : x
  2. Step 2: Convert to fraction form
    21,040.66/29,053.17 = 20,089.31/x
  3. Step 3: Cross multiply
    21,040.66x = 29,053.17 × 20,089.31
  4. Step 4: Simplify right side
    21,040.66x = 583,658,038.17
  5. Step 5: Solve for x
    x = 583,658,038.17/21,040.66
  6. Step 6: Final answer
    x = 27,739.54

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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.