Home / 21,235.95-29,306.31-11,676.24

Finding the Fourth Proportional to 21,235.95, 29,306.31 and 11,676.24

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Solution

The fourth proportional to 21,235.95, 29,306.31 and 11,676.24 is: 16,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.95 : 29,306.31 = 11,676.24 : x
  2. Step 2: Convert to fraction form
    21,235.95/29,306.31 = 11,676.24/x
  3. Step 3: Cross multiply
    21,235.95x = 29,306.31 × 11,676.24
  4. Step 4: Simplify right side
    21,235.95x = 342,187,509.07
  5. Step 5: Solve for x
    x = 342,187,509.07/21,235.95
  6. Step 6: Final answer
    x = 16,113.60

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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.