Home / 21,342.84-29,454.74-11,784.56

Finding the Fourth Proportional to 21,342.84, 29,454.74 and 11,784.56

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Solution

The fourth proportional to 21,342.84, 29,454.74 and 11,784.56 is: 16,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.84 : 29,454.74 = 11,784.56 : x
  2. Step 2: Convert to fraction form
    21,342.84/29,454.74 = 11,784.56/x
  3. Step 3: Cross multiply
    21,342.84x = 29,454.74 × 11,784.56
  4. Step 4: Simplify right side
    21,342.84x = 347,111,150.81
  5. Step 5: Solve for x
    x = 347,111,150.81/21,342.84
  6. Step 6: Final answer
    x = 16,263.59

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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.