Home / 21,030.80-29,023.36-11,599.96

Finding the Fourth Proportional to 21,030.80, 29,023.36 and 11,599.96

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Solution

The fourth proportional to 21,030.80, 29,023.36 and 11,599.96 is: 16,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.80 : 29,023.36 = 11,599.96 : x
  2. Step 2: Convert to fraction form
    21,030.80/29,023.36 = 11,599.96/x
  3. Step 3: Cross multiply
    21,030.80x = 29,023.36 × 11,599.96
  4. Step 4: Simplify right side
    21,030.80x = 336,669,815.07
  5. Step 5: Solve for x
    x = 336,669,815.07/21,030.80
  6. Step 6: Final answer
    x = 16,008.42

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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.