Home / 21,030.88-29,021.52-11,597.68

Finding the Fourth Proportional to 21,030.88, 29,021.52 and 11,597.68

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Solution

The fourth proportional to 21,030.88, 29,021.52 and 11,597.68 is: 16,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.88 : 29,021.52 = 11,597.68 : x
  2. Step 2: Convert to fraction form
    21,030.88/29,021.52 = 11,597.68/x
  3. Step 3: Cross multiply
    21,030.88x = 29,021.52 × 11,597.68
  4. Step 4: Simplify right side
    21,030.88x = 336,582,302.07
  5. Step 5: Solve for x
    x = 336,582,302.07/21,030.88
  6. Step 6: Final answer
    x = 16,004.19

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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.