Home / 28,083.77-42,125.57-11,439.89

Finding the Fourth Proportional to 28,083.77, 42,125.57 and 11,439.89

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Solution

The fourth proportional to 28,083.77, 42,125.57 and 11,439.89 is: 17,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.77 : 42,125.57 = 11,439.89 : x
  2. Step 2: Convert to fraction form
    28,083.77/42,125.57 = 11,439.89/x
  3. Step 3: Cross multiply
    28,083.77x = 42,125.57 × 11,439.89
  4. Step 4: Simplify right side
    28,083.77x = 481,911,810.27
  5. Step 5: Solve for x
    x = 481,911,810.27/28,083.77
  6. Step 6: Final answer
    x = 17,159.80

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1.5x scale

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.