Home / 25,453.54-38,351.95-21,107.62

Finding the Fourth Proportional to 25,453.54, 38,351.95 and 21,107.62

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Solution

The fourth proportional to 25,453.54, 38,351.95 and 21,107.62 is: 31,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.54 : 38,351.95 = 21,107.62 : x
  2. Step 2: Convert to fraction form
    25,453.54/38,351.95 = 21,107.62/x
  3. Step 3: Cross multiply
    25,453.54x = 38,351.95 × 21,107.62
  4. Step 4: Simplify right side
    25,453.54x = 809,518,386.86
  5. Step 5: Solve for x
    x = 809,518,386.86/25,453.54
  6. Step 6: Final answer
    x = 31,803.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.