Home / 28,842.30-43,190.55-18,927.90

Finding the Fourth Proportional to 28,842.30, 43,190.55 and 18,927.90

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Solution

The fourth proportional to 28,842.30, 43,190.55 and 18,927.90 is: 28,344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.30 : 43,190.55 = 18,927.90 : x
  2. Step 2: Convert to fraction form
    28,842.30/43,190.55 = 18,927.90/x
  3. Step 3: Cross multiply
    28,842.30x = 43,190.55 × 18,927.90
  4. Step 4: Simplify right side
    28,842.30x = 817,506,411.35
  5. Step 5: Solve for x
    x = 817,506,411.35/28,842.30
  6. Step 6: Final answer
    x = 28,344.01

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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.