Home / 20,842.22-28,762.08-11,410.86

Finding the Fourth Proportional to 20,842.22, 28,762.08 and 11,410.86

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Solution

The fourth proportional to 20,842.22, 28,762.08 and 11,410.86 is: 15,746.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.22 : 28,762.08 = 11,410.86 : x
  2. Step 2: Convert to fraction form
    20,842.22/28,762.08 = 11,410.86/x
  3. Step 3: Cross multiply
    20,842.22x = 28,762.08 × 11,410.86
  4. Step 4: Simplify right side
    20,842.22x = 328,200,068.19
  5. Step 5: Solve for x
    x = 328,200,068.19/20,842.22
  6. Step 6: Final answer
    x = 15,746.89

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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.