Home / 28,452.36-42,671.16-8,457.15

Finding the Fourth Proportional to 28,452.36, 42,671.16 and 8,457.15

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Solution

The fourth proportional to 28,452.36, 42,671.16 and 8,457.15 is: 12,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.36 : 42,671.16 = 8,457.15 : x
  2. Step 2: Convert to fraction form
    28,452.36/42,671.16 = 8,457.15/x
  3. Step 3: Cross multiply
    28,452.36x = 42,671.16 × 8,457.15
  4. Step 4: Simplify right side
    28,452.36x = 360,876,400.79
  5. Step 5: Solve for x
    x = 360,876,400.79/28,452.36
  6. Step 6: Final answer
    x = 12,683.53

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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.