Home / 21,058.72-29,050.54-12,554.85

Finding the Fourth Proportional to 21,058.72, 29,050.54 and 12,554.85

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Solution

The fourth proportional to 21,058.72, 29,050.54 and 12,554.85 is: 17,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.72 : 29,050.54 = 12,554.85 : x
  2. Step 2: Convert to fraction form
    21,058.72/29,050.54 = 12,554.85/x
  3. Step 3: Cross multiply
    21,058.72x = 29,050.54 × 12,554.85
  4. Step 4: Simplify right side
    21,058.72x = 364,725,172.12
  5. Step 5: Solve for x
    x = 364,725,172.12/21,058.72
  6. Step 6: Final answer
    x = 17,319.44

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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.