Home / 25,729.94-38,576.68-9,921.57

Finding the Fourth Proportional to 25,729.94, 38,576.68 and 9,921.57

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Solution

The fourth proportional to 25,729.94, 38,576.68 and 9,921.57 is: 14,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.94 : 38,576.68 = 9,921.57 : x
  2. Step 2: Convert to fraction form
    25,729.94/38,576.68 = 9,921.57/x
  3. Step 3: Cross multiply
    25,729.94x = 38,576.68 × 9,921.57
  4. Step 4: Simplify right side
    25,729.94x = 382,741,206.18
  5. Step 5: Solve for x
    x = 382,741,206.18/25,729.94
  6. Step 6: Final answer
    x = 14,875.33

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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.