Home / 28,551.48-42,815.88-11,010.12

Finding the Fourth Proportional to 28,551.48, 42,815.88 and 11,010.12

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Solution

The fourth proportional to 28,551.48, 42,815.88 and 11,010.12 is: 16,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.48 : 42,815.88 = 11,010.12 : x
  2. Step 2: Convert to fraction form
    28,551.48/42,815.88 = 11,010.12/x
  3. Step 3: Cross multiply
    28,551.48x = 42,815.88 × 11,010.12
  4. Step 4: Simplify right side
    28,551.48x = 471,407,976.71
  5. Step 5: Solve for x
    x = 471,407,976.71/28,551.48
  6. Step 6: Final answer
    x = 16,510.81

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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.