Home / 22,160.40-30,577.59-13,207.74

Finding the Fourth Proportional to 22,160.40, 30,577.59 and 13,207.74

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Solution

The fourth proportional to 22,160.40, 30,577.59 and 13,207.74 is: 18,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.40 : 30,577.59 = 13,207.74 : x
  2. Step 2: Convert to fraction form
    22,160.40/30,577.59 = 13,207.74/x
  3. Step 3: Cross multiply
    22,160.40x = 30,577.59 × 13,207.74
  4. Step 4: Simplify right side
    22,160.40x = 403,860,858.55
  5. Step 5: Solve for x
    x = 403,860,858.55/22,160.40
  6. Step 6: Final answer
    x = 18,224.44

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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.