Home / 21,054.07-29,052.88-11,977.02

Finding the Fourth Proportional to 21,054.07, 29,052.88 and 11,977.02

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Solution

The fourth proportional to 21,054.07, 29,052.88 and 11,977.02 is: 16,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.07 : 29,052.88 = 11,977.02 : x
  2. Step 2: Convert to fraction form
    21,054.07/29,052.88 = 11,977.02/x
  3. Step 3: Cross multiply
    21,054.07x = 29,052.88 × 11,977.02
  4. Step 4: Simplify right side
    21,054.07x = 347,966,894.88
  5. Step 5: Solve for x
    x = 347,966,894.88/21,054.07
  6. Step 6: Final answer
    x = 16,527.30

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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.