Home / 28,433.91-42,649.33-8,712.53

Finding the Fourth Proportional to 28,433.91, 42,649.33 and 8,712.53

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Solution

The fourth proportional to 28,433.91, 42,649.33 and 8,712.53 is: 13,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.91 : 42,649.33 = 8,712.53 : x
  2. Step 2: Convert to fraction form
    28,433.91/42,649.33 = 8,712.53/x
  3. Step 3: Cross multiply
    28,433.91x = 42,649.33 × 8,712.53
  4. Step 4: Simplify right side
    28,433.91x = 371,583,444.72
  5. Step 5: Solve for x
    x = 371,583,444.72/28,433.91
  6. Step 6: Final answer
    x = 13,068.32

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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.