Home / 21,503.18-29,674.38-12,071.73

Finding the Fourth Proportional to 21,503.18, 29,674.38 and 12,071.73

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Solution

The fourth proportional to 21,503.18, 29,674.38 and 12,071.73 is: 16,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.18 : 29,674.38 = 12,071.73 : x
  2. Step 2: Convert to fraction form
    21,503.18/29,674.38 = 12,071.73/x
  3. Step 3: Cross multiply
    21,503.18x = 29,674.38 × 12,071.73
  4. Step 4: Simplify right side
    21,503.18x = 358,221,103.28
  5. Step 5: Solve for x
    x = 358,221,103.28/21,503.18
  6. Step 6: Final answer
    x = 16,658.98

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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.