Home / 18,975.17-28,457.87-5,644.70

Finding the Fourth Proportional to 18,975.17, 28,457.87 and 5,644.70

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Solution

The fourth proportional to 18,975.17, 28,457.87 and 5,644.70 is: 8,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.17 : 28,457.87 = 5,644.70 : x
  2. Step 2: Convert to fraction form
    18,975.17/28,457.87 = 5,644.70/x
  3. Step 3: Cross multiply
    18,975.17x = 28,457.87 × 5,644.70
  4. Step 4: Simplify right side
    18,975.17x = 160,636,181.71
  5. Step 5: Solve for x
    x = 160,636,181.71/18,975.17
  6. Step 6: Final answer
    x = 8,465.60

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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.