Home / 19,948.70-29,899.69-12,823.85

Finding the Fourth Proportional to 19,948.70, 29,899.69 and 12,823.85

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Solution

The fourth proportional to 19,948.70, 29,899.69 and 12,823.85 is: 19,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.70 : 29,899.69 = 12,823.85 : x
  2. Step 2: Convert to fraction form
    19,948.70/29,899.69 = 12,823.85/x
  3. Step 3: Cross multiply
    19,948.70x = 29,899.69 × 12,823.85
  4. Step 4: Simplify right side
    19,948.70x = 383,429,139.61
  5. Step 5: Solve for x
    x = 383,429,139.61/19,948.70
  6. Step 6: Final answer
    x = 19,220.76

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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.