Home / 35,390.28-53,085.84-12,018.54

Finding the Fourth Proportional to 35,390.28, 53,085.84 and 12,018.54

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Solution

The fourth proportional to 35,390.28, 53,085.84 and 12,018.54 is: 18,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.28 : 53,085.84 = 12,018.54 : x
  2. Step 2: Convert to fraction form
    35,390.28/53,085.84 = 12,018.54/x
  3. Step 3: Cross multiply
    35,390.28x = 53,085.84 × 12,018.54
  4. Step 4: Simplify right side
    35,390.28x = 638,014,291.47
  5. Step 5: Solve for x
    x = 638,014,291.47/35,390.28
  6. Step 6: Final answer
    x = 18,027.95

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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.