Home / 25,729.20-38,633.40-14,065.20

Finding the Fourth Proportional to 25,729.20, 38,633.40 and 14,065.20

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Solution

The fourth proportional to 25,729.20, 38,633.40 and 14,065.20 is: 21,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.20 : 38,633.40 = 14,065.20 : x
  2. Step 2: Convert to fraction form
    25,729.20/38,633.40 = 14,065.20/x
  3. Step 3: Cross multiply
    25,729.20x = 38,633.40 × 14,065.20
  4. Step 4: Simplify right side
    25,729.20x = 543,386,497.68
  5. Step 5: Solve for x
    x = 543,386,497.68/25,729.20
  6. Step 6: Final answer
    x = 21,119.45

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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.