Home / 25,354.76-37,849.21-21,422.60

Finding the Fourth Proportional to 25,354.76, 37,849.21 and 21,422.60

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Solution

The fourth proportional to 25,354.76, 37,849.21 and 21,422.60 is: 31,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,354.76 : 37,849.21 = 21,422.60 : x
  2. Step 2: Convert to fraction form
    25,354.76/37,849.21 = 21,422.60/x
  3. Step 3: Cross multiply
    25,354.76x = 37,849.21 × 21,422.60
  4. Step 4: Simplify right side
    25,354.76x = 810,828,486.15
  5. Step 5: Solve for x
    x = 810,828,486.15/25,354.76
  6. Step 6: Final answer
    x = 31,979.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.