Home / 20,842.14-28,762.14-11,410.70

Finding the Fourth Proportional to 20,842.14, 28,762.14 and 11,410.70

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Solution

The fourth proportional to 20,842.14, 28,762.14 and 11,410.70 is: 15,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.14 : 28,762.14 = 11,410.70 : x
  2. Step 2: Convert to fraction form
    20,842.14/28,762.14 = 11,410.70/x
  3. Step 3: Cross multiply
    20,842.14x = 28,762.14 × 11,410.70
  4. Step 4: Simplify right side
    20,842.14x = 328,196,150.90
  5. Step 5: Solve for x
    x = 328,196,150.90/20,842.14
  6. Step 6: Final answer
    x = 15,746.76

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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.