Home / 21,026.55-29,016.72-11,595.05

Finding the Fourth Proportional to 21,026.55, 29,016.72 and 11,595.05

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Solution

The fourth proportional to 21,026.55, 29,016.72 and 11,595.05 is: 16,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.55 : 29,016.72 = 11,595.05 : x
  2. Step 2: Convert to fraction form
    21,026.55/29,016.72 = 11,595.05/x
  3. Step 3: Cross multiply
    21,026.55x = 29,016.72 × 11,595.05
  4. Step 4: Simplify right side
    21,026.55x = 336,450,319.24
  5. Step 5: Solve for x
    x = 336,450,319.24/21,026.55
  6. Step 6: Final answer
    x = 16,001.21

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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.