Home / 21,881.52-30,120.48-19,082.16

Finding the Fourth Proportional to 21,881.52, 30,120.48 and 19,082.16

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Solution

The fourth proportional to 21,881.52, 30,120.48 and 19,082.16 is: 26,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881.52 : 30,120.48 = 19,082.16 : x
  2. Step 2: Convert to fraction form
    21,881.52/30,120.48 = 19,082.16/x
  3. Step 3: Cross multiply
    21,881.52x = 30,120.48 × 19,082.16
  4. Step 4: Simplify right side
    21,881.52x = 574,763,818.64
  5. Step 5: Solve for x
    x = 574,763,818.64/21,881.52
  6. Step 6: Final answer
    x = 26,267.09

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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.