Home / 21,892.90-30,195.55-18,873.22

Finding the Fourth Proportional to 21,892.90, 30,195.55 and 18,873.22

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Solution

The fourth proportional to 21,892.90, 30,195.55 and 18,873.22 is: 26,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.90 : 30,195.55 = 18,873.22 : x
  2. Step 2: Convert to fraction form
    21,892.90/30,195.55 = 18,873.22/x
  3. Step 3: Cross multiply
    21,892.90x = 30,195.55 × 18,873.22
  4. Step 4: Simplify right side
    21,892.90x = 569,887,258.17
  5. Step 5: Solve for x
    x = 569,887,258.17/21,892.90
  6. Step 6: Final answer
    x = 26,030.69

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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.