Home / 28,535.13-42,774.87-11,899.92

Finding the Fourth Proportional to 28,535.13, 42,774.87 and 11,899.92

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Solution

The fourth proportional to 28,535.13, 42,774.87 and 11,899.92 is: 17,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.13 : 42,774.87 = 11,899.92 : x
  2. Step 2: Convert to fraction form
    28,535.13/42,774.87 = 11,899.92/x
  3. Step 3: Cross multiply
    28,535.13x = 42,774.87 × 11,899.92
  4. Step 4: Simplify right side
    28,535.13x = 509,017,531.01
  5. Step 5: Solve for x
    x = 509,017,531.01/28,535.13
  6. Step 6: Final answer
    x = 17,838.28

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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.