Home / 25,453.04-38,128.52-20,196.95

Finding the Fourth Proportional to 25,453.04, 38,128.52 and 20,196.95

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Solution

The fourth proportional to 25,453.04, 38,128.52 and 20,196.95 is: 30,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.04 : 38,128.52 = 20,196.95 : x
  2. Step 2: Convert to fraction form
    25,453.04/38,128.52 = 20,196.95/x
  3. Step 3: Cross multiply
    25,453.04x = 38,128.52 × 20,196.95
  4. Step 4: Simplify right side
    25,453.04x = 770,079,671.86
  5. Step 5: Solve for x
    x = 770,079,671.86/25,453.04
  6. Step 6: Final answer
    x = 30,254.93

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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.