Home / 21,045.19-29,032.35-12,542.41

Finding the Fourth Proportional to 21,045.19, 29,032.35 and 12,542.41

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Solution

The fourth proportional to 21,045.19, 29,032.35 and 12,542.41 is: 17,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.19 : 29,032.35 = 12,542.41 : x
  2. Step 2: Convert to fraction form
    21,045.19/29,032.35 = 12,542.41/x
  3. Step 3: Cross multiply
    21,045.19x = 29,032.35 × 12,542.41
  4. Step 4: Simplify right side
    21,045.19x = 364,135,636.96
  5. Step 5: Solve for x
    x = 364,135,636.96/21,045.19
  6. Step 6: Final answer
    x = 17,302.56

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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.