Home / 21,055.76-29,044.14-12,552.30

Finding the Fourth Proportional to 21,055.76, 29,044.14 and 12,552.30

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Solution

The fourth proportional to 21,055.76, 29,044.14 and 12,552.30 is: 17,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.76 : 29,044.14 = 12,552.30 : x
  2. Step 2: Convert to fraction form
    21,055.76/29,044.14 = 12,552.30/x
  3. Step 3: Cross multiply
    21,055.76x = 29,044.14 × 12,552.30
  4. Step 4: Simplify right side
    21,055.76x = 364,570,758.52
  5. Step 5: Solve for x
    x = 364,570,758.52/21,055.76
  6. Step 6: Final answer
    x = 17,314.54

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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.