Home / 25,485.59-35,179.40-21,886.04

Finding the Fourth Proportional to 25,485.59, 35,179.40 and 21,886.04

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Solution

The fourth proportional to 25,485.59, 35,179.40 and 21,886.04 is: 30,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.59 : 35,179.40 = 21,886.04 : x
  2. Step 2: Convert to fraction form
    25,485.59/35,179.40 = 21,886.04/x
  3. Step 3: Cross multiply
    25,485.59x = 35,179.40 × 21,886.04
  4. Step 4: Simplify right side
    25,485.59x = 769,937,898.24
  5. Step 5: Solve for x
    x = 769,937,898.24/25,485.59
  6. Step 6: Final answer
    x = 30,210.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.