Home / 28,489.04-42,748.86-11,860.55

Finding the Fourth Proportional to 28,489.04, 42,748.86 and 11,860.55

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Solution

The fourth proportional to 28,489.04, 42,748.86 and 11,860.55 is: 17,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.04 : 42,748.86 = 11,860.55 : x
  2. Step 2: Convert to fraction form
    28,489.04/42,748.86 = 11,860.55/x
  3. Step 3: Cross multiply
    28,489.04x = 42,748.86 × 11,860.55
  4. Step 4: Simplify right side
    28,489.04x = 507,024,991.47
  5. Step 5: Solve for x
    x = 507,024,991.47/28,489.04
  6. Step 6: Final answer
    x = 17,797.19

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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.