Home / 25,128.80-37,730.40-14,057.60

Finding the Fourth Proportional to 25,128.80, 37,730.40 and 14,057.60

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Solution

The fourth proportional to 25,128.80, 37,730.40 and 14,057.60 is: 21,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128.80 : 37,730.40 = 14,057.60 : x
  2. Step 2: Convert to fraction form
    25,128.80/37,730.40 = 14,057.60/x
  3. Step 3: Cross multiply
    25,128.80x = 37,730.40 × 14,057.60
  4. Step 4: Simplify right side
    25,128.80x = 530,398,871.04
  5. Step 5: Solve for x
    x = 530,398,871.04/25,128.80
  6. Step 6: Final answer
    x = 21,107.21

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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.