Home / 21,542.05-29,750.69-19,193.90

Finding the Fourth Proportional to 21,542.05, 29,750.69 and 19,193.90

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Solution

The fourth proportional to 21,542.05, 29,750.69 and 19,193.90 is: 26,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.05 : 29,750.69 = 19,193.90 : x
  2. Step 2: Convert to fraction form
    21,542.05/29,750.69 = 19,193.90/x
  3. Step 3: Cross multiply
    21,542.05x = 29,750.69 × 19,193.90
  4. Step 4: Simplify right side
    21,542.05x = 571,031,672.82
  5. Step 5: Solve for x
    x = 571,031,672.82/21,542.05
  6. Step 6: Final answer
    x = 26,507.77

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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.