Home / 19,429.16-26,823.30-12,824.36

Finding the Fourth Proportional to 19,429.16, 26,823.30 and 12,824.36

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Solution

The fourth proportional to 19,429.16, 26,823.30 and 12,824.36 is: 17,704.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.16 : 26,823.30 = 12,824.36 : x
  2. Step 2: Convert to fraction form
    19,429.16/26,823.30 = 12,824.36/x
  3. Step 3: Cross multiply
    19,429.16x = 26,823.30 × 12,824.36
  4. Step 4: Simplify right side
    19,429.16x = 343,991,655.59
  5. Step 5: Solve for x
    x = 343,991,655.59/19,429.16
  6. Step 6: Final answer
    x = 17,704.92

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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.