Home / 19,220.63-28,820.69-9,856.85

Finding the Fourth Proportional to 19,220.63, 28,820.69 and 9,856.85

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Solution

The fourth proportional to 19,220.63, 28,820.69 and 9,856.85 is: 14,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.63 : 28,820.69 = 9,856.85 : x
  2. Step 2: Convert to fraction form
    19,220.63/28,820.69 = 9,856.85/x
  3. Step 3: Cross multiply
    19,220.63x = 28,820.69 × 9,856.85
  4. Step 4: Simplify right side
    19,220.63x = 284,081,218.23
  5. Step 5: Solve for x
    x = 284,081,218.23/19,220.63
  6. Step 6: Final answer
    x = 14,780.02

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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.