Home / 28,046.28-42,085.50-11,403.24

Finding the Fourth Proportional to 28,046.28, 42,085.50 and 11,403.24

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Solution

The fourth proportional to 28,046.28, 42,085.50 and 11,403.24 is: 17,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.28 : 42,085.50 = 11,403.24 : x
  2. Step 2: Convert to fraction form
    28,046.28/42,085.50 = 11,403.24/x
  3. Step 3: Cross multiply
    28,046.28x = 42,085.50 × 11,403.24
  4. Step 4: Simplify right side
    28,046.28x = 479,911,057.02
  5. Step 5: Solve for x
    x = 479,911,057.02/28,046.28
  6. Step 6: Final answer
    x = 17,111.40

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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.