Home / 25,896.86-38,669.62-20,572.10

Finding the Fourth Proportional to 25,896.86, 38,669.62 and 20,572.10

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Solution

The fourth proportional to 25,896.86, 38,669.62 and 20,572.10 is: 30,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,896.86 : 38,669.62 = 20,572.10 : x
  2. Step 2: Convert to fraction form
    25,896.86/38,669.62 = 20,572.10/x
  3. Step 3: Cross multiply
    25,896.86x = 38,669.62 × 20,572.10
  4. Step 4: Simplify right side
    25,896.86x = 795,515,289.60
  5. Step 5: Solve for x
    x = 795,515,289.60/25,896.86
  6. Step 6: Final answer
    x = 30,718.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.