Home / 28,538.73-42,801.17-11,889.68

Finding the Fourth Proportional to 28,538.73, 42,801.17 and 11,889.68

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Solution

The fourth proportional to 28,538.73, 42,801.17 and 11,889.68 is: 17,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.73 : 42,801.17 = 11,889.68 : x
  2. Step 2: Convert to fraction form
    28,538.73/42,801.17 = 11,889.68/x
  3. Step 3: Cross multiply
    28,538.73x = 42,801.17 × 11,889.68
  4. Step 4: Simplify right side
    28,538.73x = 508,892,214.93
  5. Step 5: Solve for x
    x = 508,892,214.93/28,538.73
  6. Step 6: Final answer
    x = 17,831.63

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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.