Home / 19,613.40-29,428.30-8,529.41

Finding the Fourth Proportional to 19,613.40, 29,428.30 and 8,529.41

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Solution

The fourth proportional to 19,613.40, 29,428.30 and 8,529.41 is: 12,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.40 : 29,428.30 = 8,529.41 : x
  2. Step 2: Convert to fraction form
    19,613.40/29,428.30 = 8,529.41/x
  3. Step 3: Cross multiply
    19,613.40x = 29,428.30 × 8,529.41
  4. Step 4: Simplify right side
    19,613.40x = 251,006,036.30
  5. Step 5: Solve for x
    x = 251,006,036.30/19,613.40
  6. Step 6: Final answer
    x = 12,797.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.