Home / 21,042.45-29,038.50-11,611.08

Finding the Fourth Proportional to 21,042.45, 29,038.50 and 11,611.08

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Solution

The fourth proportional to 21,042.45, 29,038.50 and 11,611.08 is: 16,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.45 : 29,038.50 = 11,611.08 : x
  2. Step 2: Convert to fraction form
    21,042.45/29,038.50 = 11,611.08/x
  3. Step 3: Cross multiply
    21,042.45x = 29,038.50 × 11,611.08
  4. Step 4: Simplify right side
    21,042.45x = 337,168,346.58
  5. Step 5: Solve for x
    x = 337,168,346.58/21,042.45
  6. Step 6: Final answer
    x = 16,023.25

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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.