Home / 38,541.78-57,820.95-13,580.82

Finding the Fourth Proportional to 38,541.78, 57,820.95 and 13,580.82

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Solution

The fourth proportional to 38,541.78, 57,820.95 and 13,580.82 is: 20,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,541.78 : 57,820.95 = 13,580.82 : x
  2. Step 2: Convert to fraction form
    38,541.78/57,820.95 = 13,580.82/x
  3. Step 3: Cross multiply
    38,541.78x = 57,820.95 × 13,580.82
  4. Step 4: Simplify right side
    38,541.78x = 785,255,914.18
  5. Step 5: Solve for x
    x = 785,255,914.18/38,541.78
  6. Step 6: Final answer
    x = 20,374.15

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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.