Home / 20,018.00-30,037.71-12,996.37

Finding the Fourth Proportional to 20,018.00, 30,037.71 and 12,996.37

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Solution

The fourth proportional to 20,018.00, 30,037.71 and 12,996.37 is: 19,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.00 : 30,037.71 = 12,996.37 : x
  2. Step 2: Convert to fraction form
    20,018.00/30,037.71 = 12,996.37/x
  3. Step 3: Cross multiply
    20,018.00x = 30,037.71 × 12,996.37
  4. Step 4: Simplify right side
    20,018.00x = 390,381,118.02
  5. Step 5: Solve for x
    x = 390,381,118.02/20,018.00
  6. Step 6: Final answer
    x = 19,501.50

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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.