Home / 19,829.55-27,373.58-12,668.88

Finding the Fourth Proportional to 19,829.55, 27,373.58 and 12,668.88

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Solution

The fourth proportional to 19,829.55, 27,373.58 and 12,668.88 is: 17,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.55 : 27,373.58 = 12,668.88 : x
  2. Step 2: Convert to fraction form
    19,829.55/27,373.58 = 12,668.88/x
  3. Step 3: Cross multiply
    19,829.55x = 27,373.58 × 12,668.88
  4. Step 4: Simplify right side
    19,829.55x = 346,792,600.19
  5. Step 5: Solve for x
    x = 346,792,600.19/19,829.55
  6. Step 6: Final answer
    x = 17,488.68

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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.