Home / 22,403.22-30,911.48-12,966.32

Finding the Fourth Proportional to 22,403.22, 30,911.48 and 12,966.32

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Solution

The fourth proportional to 22,403.22, 30,911.48 and 12,966.32 is: 17,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.22 : 30,911.48 = 12,966.32 : x
  2. Step 2: Convert to fraction form
    22,403.22/30,911.48 = 12,966.32/x
  3. Step 3: Cross multiply
    22,403.22x = 30,911.48 × 12,966.32
  4. Step 4: Simplify right side
    22,403.22x = 400,808,141.35
  5. Step 5: Solve for x
    x = 400,808,141.35/22,403.22
  6. Step 6: Final answer
    x = 17,890.65

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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.