Home / 28,580.09-42,696.30-18,502.74

Finding the Fourth Proportional to 28,580.09, 42,696.30 and 18,502.74

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Solution

The fourth proportional to 28,580.09, 42,696.30 and 18,502.74 is: 27,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.09 : 42,696.30 = 18,502.74 : x
  2. Step 2: Convert to fraction form
    28,580.09/42,696.30 = 18,502.74/x
  3. Step 3: Cross multiply
    28,580.09x = 42,696.30 × 18,502.74
  4. Step 4: Simplify right side
    28,580.09x = 789,998,588.73
  5. Step 5: Solve for x
    x = 789,998,588.73/28,580.09
  6. Step 6: Final answer
    x = 27,641.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.