Home / 25,638.22-35,396.76-19,658.40

Finding the Fourth Proportional to 25,638.22, 35,396.76 and 19,658.40

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Solution

The fourth proportional to 25,638.22, 35,396.76 and 19,658.40 is: 27,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.22 : 35,396.76 = 19,658.40 : x
  2. Step 2: Convert to fraction form
    25,638.22/35,396.76 = 19,658.40/x
  3. Step 3: Cross multiply
    25,638.22x = 35,396.76 × 19,658.40
  4. Step 4: Simplify right side
    25,638.22x = 695,843,666.78
  5. Step 5: Solve for x
    x = 695,843,666.78/25,638.22
  6. Step 6: Final answer
    x = 27,140.87

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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.