Home / 20,842.43-28,762.22-11,410.79

Finding the Fourth Proportional to 20,842.43, 28,762.22 and 11,410.79

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Solution

The fourth proportional to 20,842.43, 28,762.22 and 11,410.79 is: 15,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.43 : 28,762.22 = 11,410.79 : x
  2. Step 2: Convert to fraction form
    20,842.43/28,762.22 = 11,410.79/x
  3. Step 3: Cross multiply
    20,842.43x = 28,762.22 × 11,410.79
  4. Step 4: Simplify right side
    20,842.43x = 328,199,595.30
  5. Step 5: Solve for x
    x = 328,199,595.30/20,842.43
  6. Step 6: Final answer
    x = 15,746.70

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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.