Home / 28,987.87-40,002.55-16,241.58

Finding the Fourth Proportional to 28,987.87, 40,002.55 and 16,241.58

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Solution

The fourth proportional to 28,987.87, 40,002.55 and 16,241.58 is: 22,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.87 : 40,002.55 = 16,241.58 : x
  2. Step 2: Convert to fraction form
    28,987.87/40,002.55 = 16,241.58/x
  3. Step 3: Cross multiply
    28,987.87x = 40,002.55 × 16,241.58
  4. Step 4: Simplify right side
    28,987.87x = 649,704,534.82
  5. Step 5: Solve for x
    x = 649,704,534.82/28,987.87
  6. Step 6: Final answer
    x = 22,412.98

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1.5x scale

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.