Home / 15,687.22-23,640.99-14,129.16

Finding the Fourth Proportional to 15,687.22, 23,640.99 and 14,129.16

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Solution

The fourth proportional to 15,687.22, 23,640.99 and 14,129.16 is: 21,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.22 : 23,640.99 = 14,129.16 : x
  2. Step 2: Convert to fraction form
    15,687.22/23,640.99 = 14,129.16/x
  3. Step 3: Cross multiply
    15,687.22x = 23,640.99 × 14,129.16
  4. Step 4: Simplify right side
    15,687.22x = 334,027,330.27
  5. Step 5: Solve for x
    x = 334,027,330.27/15,687.22
  6. Step 6: Final answer
    x = 21,292.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.