Home / 21,359-29,475.42-11,927.56

Finding the Fourth Proportional to 21,359, 29,475.42 and 11,927.56

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Solution

The fourth proportional to 21,359, 29,475.42 and 11,927.56 is: 16,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359 : 29,475.42 = 11,927.56 : x
  2. Step 2: Convert to fraction form
    21,359/29,475.42 = 11,927.56/x
  3. Step 3: Cross multiply
    21,359x = 29,475.42 × 11,927.56
  4. Step 4: Simplify right side
    21,359x = 351,569,840.58
  5. Step 5: Solve for x
    x = 351,569,840.58/21,359
  6. Step 6: Final answer
    x = 16,460.03

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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.