Home / 21,354.98-29,471.70-11,925.37

Finding the Fourth Proportional to 21,354.98, 29,471.70 and 11,925.37

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Solution

The fourth proportional to 21,354.98, 29,471.70 and 11,925.37 is: 16,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.98 : 29,471.70 = 11,925.37 : x
  2. Step 2: Convert to fraction form
    21,354.98/29,471.70 = 11,925.37/x
  3. Step 3: Cross multiply
    21,354.98x = 29,471.70 × 11,925.37
  4. Step 4: Simplify right side
    21,354.98x = 351,460,853.35
  5. Step 5: Solve for x
    x = 351,460,853.35/21,354.98
  6. Step 6: Final answer
    x = 16,458.03

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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.