Home / 25,770.34-38,642.48-9,128.01

Finding the Fourth Proportional to 25,770.34, 38,642.48 and 9,128.01

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Solution

The fourth proportional to 25,770.34, 38,642.48 and 9,128.01 is: 13,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,770.34 : 38,642.48 = 9,128.01 : x
  2. Step 2: Convert to fraction form
    25,770.34/38,642.48 = 9,128.01/x
  3. Step 3: Cross multiply
    25,770.34x = 38,642.48 × 9,128.01
  4. Step 4: Simplify right side
    25,770.34x = 352,728,943.86
  5. Step 5: Solve for x
    x = 352,728,943.86/25,770.34
  6. Step 6: Final answer
    x = 13,687.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.