Home / 19,668.76-27,152.92-13,328.85

Finding the Fourth Proportional to 19,668.76, 27,152.92 and 13,328.85

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Solution

The fourth proportional to 19,668.76, 27,152.92 and 13,328.85 is: 18,400.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.76 : 27,152.92 = 13,328.85 : x
  2. Step 2: Convert to fraction form
    19,668.76/27,152.92 = 13,328.85/x
  3. Step 3: Cross multiply
    19,668.76x = 27,152.92 × 13,328.85
  4. Step 4: Simplify right side
    19,668.76x = 361,917,316.23
  5. Step 5: Solve for x
    x = 361,917,316.23/19,668.76
  6. Step 6: Final answer
    x = 18,400.62

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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.