Home / 21,655.58-29,884.47-12,701.37

Finding the Fourth Proportional to 21,655.58, 29,884.47 and 12,701.37

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Solution

The fourth proportional to 21,655.58, 29,884.47 and 12,701.37 is: 17,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.58 : 29,884.47 = 12,701.37 : x
  2. Step 2: Convert to fraction form
    21,655.58/29,884.47 = 12,701.37/x
  3. Step 3: Cross multiply
    21,655.58x = 29,884.47 × 12,701.37
  4. Step 4: Simplify right side
    21,655.58x = 379,573,710.72
  5. Step 5: Solve for x
    x = 379,573,710.72/21,655.58
  6. Step 6: Final answer
    x = 17,527.76

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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.