Home / 25,429.56-38,147.98-9,640.36

Finding the Fourth Proportional to 25,429.56, 38,147.98 and 9,640.36

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Solution

The fourth proportional to 25,429.56, 38,147.98 and 9,640.36 is: 14,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.56 : 38,147.98 = 9,640.36 : x
  2. Step 2: Convert to fraction form
    25,429.56/38,147.98 = 9,640.36/x
  3. Step 3: Cross multiply
    25,429.56x = 38,147.98 × 9,640.36
  4. Step 4: Simplify right side
    25,429.56x = 367,760,260.47
  5. Step 5: Solve for x
    x = 367,760,260.47/25,429.56
  6. Step 6: Final answer
    x = 14,461.92

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1.5x scale

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.