Home / 21,426.88-29,575.92-12,472.60

Finding the Fourth Proportional to 21,426.88, 29,575.92 and 12,472.60

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Solution

The fourth proportional to 21,426.88, 29,575.92 and 12,472.60 is: 17,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.88 : 29,575.92 = 12,472.60 : x
  2. Step 2: Convert to fraction form
    21,426.88/29,575.92 = 12,472.60/x
  3. Step 3: Cross multiply
    21,426.88x = 29,575.92 × 12,472.60
  4. Step 4: Simplify right side
    21,426.88x = 368,888,619.79
  5. Step 5: Solve for x
    x = 368,888,619.79/21,426.88
  6. Step 6: Final answer
    x = 17,216.16

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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.