Home / 25,895.86-38,668.13-20,571.10

Finding the Fourth Proportional to 25,895.86, 38,668.13 and 20,571.10

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Solution

The fourth proportional to 25,895.86, 38,668.13 and 20,571.10 is: 30,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,895.86 : 38,668.13 = 20,571.10 : x
  2. Step 2: Convert to fraction form
    25,895.86/38,668.13 = 20,571.10/x
  3. Step 3: Cross multiply
    25,895.86x = 38,668.13 × 20,571.10
  4. Step 4: Simplify right side
    25,895.86x = 795,445,969.04
  5. Step 5: Solve for x
    x = 795,445,969.04/25,895.86
  6. Step 6: Final answer
    x = 30,717.11

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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.