Home / 25,821.84-38,681.40-20,249.04

Finding the Fourth Proportional to 25,821.84, 38,681.40 and 20,249.04

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Solution

The fourth proportional to 25,821.84, 38,681.40 and 20,249.04 is: 30,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.84 : 38,681.40 = 20,249.04 : x
  2. Step 2: Convert to fraction form
    25,821.84/38,681.40 = 20,249.04/x
  3. Step 3: Cross multiply
    25,821.84x = 38,681.40 × 20,249.04
  4. Step 4: Simplify right side
    25,821.84x = 783,261,215.86
  5. Step 5: Solve for x
    x = 783,261,215.86/25,821.84
  6. Step 6: Final answer
    x = 30,333.28

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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.