Home / 19,587.24-27,005.76-13,288.68

Finding the Fourth Proportional to 19,587.24, 27,005.76 and 13,288.68

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Solution

The fourth proportional to 19,587.24, 27,005.76 and 13,288.68 is: 18,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.24 : 27,005.76 = 13,288.68 : x
  2. Step 2: Convert to fraction form
    19,587.24/27,005.76 = 13,288.68/x
  3. Step 3: Cross multiply
    19,587.24x = 27,005.76 × 13,288.68
  4. Step 4: Simplify right side
    19,587.24x = 358,870,902.80
  5. Step 5: Solve for x
    x = 358,870,902.80/19,587.24
  6. Step 6: Final answer
    x = 18,321.67

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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.