Home / 25,624.86-38,448.81-13,920.54

Finding the Fourth Proportional to 25,624.86, 38,448.81 and 13,920.54

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Solution

The fourth proportional to 25,624.86, 38,448.81 and 13,920.54 is: 20,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,624.86 : 38,448.81 = 13,920.54 : x
  2. Step 2: Convert to fraction form
    25,624.86/38,448.81 = 13,920.54/x
  3. Step 3: Cross multiply
    25,624.86x = 38,448.81 × 13,920.54
  4. Step 4: Simplify right side
    25,624.86x = 535,228,197.56
  5. Step 5: Solve for x
    x = 535,228,197.56/25,624.86
  6. Step 6: Final answer
    x = 20,887.07

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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.