Home / 19,946.12-27,559.86-15,785.96

Finding the Fourth Proportional to 19,946.12, 27,559.86 and 15,785.96

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Solution

The fourth proportional to 19,946.12, 27,559.86 and 15,785.96 is: 21,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946.12 : 27,559.86 = 15,785.96 : x
  2. Step 2: Convert to fraction form
    19,946.12/27,559.86 = 15,785.96/x
  3. Step 3: Cross multiply
    19,946.12x = 27,559.86 × 15,785.96
  4. Step 4: Simplify right side
    19,946.12x = 435,058,847.57
  5. Step 5: Solve for x
    x = 435,058,847.57/19,946.12
  6. Step 6: Final answer
    x = 21,811.70

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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.