Home / 28,770.80-43,130.60-25,660.40

Finding the Fourth Proportional to 28,770.80, 43,130.60 and 25,660.40

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Solution

The fourth proportional to 28,770.80, 43,130.60 and 25,660.40 is: 38,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.80 : 43,130.60 = 25,660.40 : x
  2. Step 2: Convert to fraction form
    28,770.80/43,130.60 = 25,660.40/x
  3. Step 3: Cross multiply
    28,770.80x = 43,130.60 × 25,660.40
  4. Step 4: Simplify right side
    28,770.80x = 1,106,748,448.24
  5. Step 5: Solve for x
    x = 1,106,748,448.24/28,770.80
  6. Step 6: Final answer
    x = 38,467.77

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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.