Home / 28,357.04-42,535.56-7,580

Finding the Fourth Proportional to 28,357.04, 42,535.56 and 7,580

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Solution

The fourth proportional to 28,357.04, 42,535.56 and 7,580 is: 11,370

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.04 : 42,535.56 = 7,580 : x
  2. Step 2: Convert to fraction form
    28,357.04/42,535.56 = 7,580/x
  3. Step 3: Cross multiply
    28,357.04x = 42,535.56 × 7,580
  4. Step 4: Simplify right side
    28,357.04x = 322,419,544.80
  5. Step 5: Solve for x
    x = 322,419,544.80/28,357.04
  6. Step 6: Final answer
    x = 11,370

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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.