Home / 21,347.79-29,460.83-11,914.53

Finding the Fourth Proportional to 21,347.79, 29,460.83 and 11,914.53

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Solution

The fourth proportional to 21,347.79, 29,460.83 and 11,914.53 is: 16,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.79 : 29,460.83 = 11,914.53 : x
  2. Step 2: Convert to fraction form
    21,347.79/29,460.83 = 11,914.53/x
  3. Step 3: Cross multiply
    21,347.79x = 29,460.83 × 11,914.53
  4. Step 4: Simplify right side
    21,347.79x = 351,011,883.29
  5. Step 5: Solve for x
    x = 351,011,883.29/21,347.79
  6. Step 6: Final answer
    x = 16,442.54

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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.