Home / 21,149.76-29,186.67-12,652.23

Finding the Fourth Proportional to 21,149.76, 29,186.67 and 12,652.23

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Solution

The fourth proportional to 21,149.76, 29,186.67 and 12,652.23 is: 17,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.76 : 29,186.67 = 12,652.23 : x
  2. Step 2: Convert to fraction form
    21,149.76/29,186.67 = 12,652.23/x
  3. Step 3: Cross multiply
    21,149.76x = 29,186.67 × 12,652.23
  4. Step 4: Simplify right side
    21,149.76x = 369,276,583.09
  5. Step 5: Solve for x
    x = 369,276,583.09/21,149.76
  6. Step 6: Final answer
    x = 17,460.09

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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.