Home / 28,962.10-43,429.25-12,313.10

Finding the Fourth Proportional to 28,962.10, 43,429.25 and 12,313.10

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Solution

The fourth proportional to 28,962.10, 43,429.25 and 12,313.10 is: 18,463.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.10 : 43,429.25 = 12,313.10 : x
  2. Step 2: Convert to fraction form
    28,962.10/43,429.25 = 12,313.10/x
  3. Step 3: Cross multiply
    28,962.10x = 43,429.25 × 12,313.10
  4. Step 4: Simplify right side
    28,962.10x = 534,748,837.53
  5. Step 5: Solve for x
    x = 534,748,837.53/28,962.10
  6. Step 6: Final answer
    x = 18,463.75

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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.