Home / 28,242.30-42,374.61-13,457.82

Finding the Fourth Proportional to 28,242.30, 42,374.61 and 13,457.82

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Solution

The fourth proportional to 28,242.30, 42,374.61 and 13,457.82 is: 20,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.30 : 42,374.61 = 13,457.82 : x
  2. Step 2: Convert to fraction form
    28,242.30/42,374.61 = 13,457.82/x
  3. Step 3: Cross multiply
    28,242.30x = 42,374.61 × 13,457.82
  4. Step 4: Simplify right side
    28,242.30x = 570,269,873.95
  5. Step 5: Solve for x
    x = 570,269,873.95/28,242.30
  6. Step 6: Final answer
    x = 20,192.05

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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.