Home / 21,568.07-29,764.16-12,134.81

Finding the Fourth Proportional to 21,568.07, 29,764.16 and 12,134.81

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Solution

The fourth proportional to 21,568.07, 29,764.16 and 12,134.81 is: 16,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.07 : 29,764.16 = 12,134.81 : x
  2. Step 2: Convert to fraction form
    21,568.07/29,764.16 = 12,134.81/x
  3. Step 3: Cross multiply
    21,568.07x = 29,764.16 × 12,134.81
  4. Step 4: Simplify right side
    21,568.07x = 361,182,485.65
  5. Step 5: Solve for x
    x = 361,182,485.65/21,568.07
  6. Step 6: Final answer
    x = 16,746.16

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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.