Home / 21,359.16-29,475.72-11,927.88

Finding the Fourth Proportional to 21,359.16, 29,475.72 and 11,927.88

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Solution

The fourth proportional to 21,359.16, 29,475.72 and 11,927.88 is: 16,460.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.16 : 29,475.72 = 11,927.88 : x
  2. Step 2: Convert to fraction form
    21,359.16/29,475.72 = 11,927.88/x
  3. Step 3: Cross multiply
    21,359.16x = 29,475.72 × 11,927.88
  4. Step 4: Simplify right side
    21,359.16x = 351,582,851.07
  5. Step 5: Solve for x
    x = 351,582,851.07/21,359.16
  6. Step 6: Final answer
    x = 16,460.52

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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.