Home / 21,559.07-29,752.37-11,999.36

Finding the Fourth Proportional to 21,559.07, 29,752.37 and 11,999.36

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Solution

The fourth proportional to 21,559.07, 29,752.37 and 11,999.36 is: 16,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.07 : 29,752.37 = 11,999.36 : x
  2. Step 2: Convert to fraction form
    21,559.07/29,752.37 = 11,999.36/x
  3. Step 3: Cross multiply
    21,559.07x = 29,752.37 × 11,999.36
  4. Step 4: Simplify right side
    21,559.07x = 357,009,279.72
  5. Step 5: Solve for x
    x = 357,009,279.72/21,559.07
  6. Step 6: Final answer
    x = 16,559.59

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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.