Home / 21,458.93-29,607.21-12,504.72

Finding the Fourth Proportional to 21,458.93, 29,607.21 and 12,504.72

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Solution

The fourth proportional to 21,458.93, 29,607.21 and 12,504.72 is: 17,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.93 : 29,607.21 = 12,504.72 : x
  2. Step 2: Convert to fraction form
    21,458.93/29,607.21 = 12,504.72/x
  3. Step 3: Cross multiply
    21,458.93x = 29,607.21 × 12,504.72
  4. Step 4: Simplify right side
    21,458.93x = 370,229,871.03
  5. Step 5: Solve for x
    x = 370,229,871.03/21,458.93
  6. Step 6: Final answer
    x = 17,252.95

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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.