Home / 18,970.80-28,457.52-5,832.36

Finding the Fourth Proportional to 18,970.80, 28,457.52 and 5,832.36

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Solution

The fourth proportional to 18,970.80, 28,457.52 and 5,832.36 is: 8,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.80 : 28,457.52 = 5,832.36 : x
  2. Step 2: Convert to fraction form
    18,970.80/28,457.52 = 5,832.36/x
  3. Step 3: Cross multiply
    18,970.80x = 28,457.52 × 5,832.36
  4. Step 4: Simplify right side
    18,970.80x = 165,974,501.35
  5. Step 5: Solve for x
    x = 165,974,501.35/18,970.80
  6. Step 6: Final answer
    x = 8,748.95

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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.