Home / 20,321.02-30,446.64-18,266.68

Finding the Fourth Proportional to 20,321.02, 30,446.64 and 18,266.68

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Solution

The fourth proportional to 20,321.02, 30,446.64 and 18,266.68 is: 27,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.02 : 30,446.64 = 18,266.68 : x
  2. Step 2: Convert to fraction form
    20,321.02/30,446.64 = 18,266.68/x
  3. Step 3: Cross multiply
    20,321.02x = 30,446.64 × 18,266.68
  4. Step 4: Simplify right side
    20,321.02x = 556,159,029.96
  5. Step 5: Solve for x
    x = 556,159,029.96/20,321.02
  6. Step 6: Final answer
    x = 27,368.66

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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.