Home / 28,938-43,412.64-12,297.84

Finding the Fourth Proportional to 28,938, 43,412.64 and 12,297.84

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Solution

The fourth proportional to 28,938, 43,412.64 and 12,297.84 is: 18,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938 : 43,412.64 = 12,297.84 : x
  2. Step 2: Convert to fraction form
    28,938/43,412.64 = 12,297.84/x
  3. Step 3: Cross multiply
    28,938x = 43,412.64 × 12,297.84
  4. Step 4: Simplify right side
    28,938x = 533,881,700.70
  5. Step 5: Solve for x
    x = 533,881,700.70/28,938
  6. Step 6: Final answer
    x = 18,449.16

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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.