Home / 19,956.27-27,510.21-12,785.34

Finding the Fourth Proportional to 19,956.27, 27,510.21 and 12,785.34

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Solution

The fourth proportional to 19,956.27, 27,510.21 and 12,785.34 is: 17,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.27 : 27,510.21 = 12,785.34 : x
  2. Step 2: Convert to fraction form
    19,956.27/27,510.21 = 12,785.34/x
  3. Step 3: Cross multiply
    19,956.27x = 27,510.21 × 12,785.34
  4. Step 4: Simplify right side
    19,956.27x = 351,727,388.32
  5. Step 5: Solve for x
    x = 351,727,388.32/19,956.27
  6. Step 6: Final answer
    x = 17,624.91

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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.