Home / 30,171.96-45,259.16-14,368.86

Finding the Fourth Proportional to 30,171.96, 45,259.16 and 14,368.86

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Solution

The fourth proportional to 30,171.96, 45,259.16 and 14,368.86 is: 21,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.96 : 45,259.16 = 14,368.86 : x
  2. Step 2: Convert to fraction form
    30,171.96/45,259.16 = 14,368.86/x
  3. Step 3: Cross multiply
    30,171.96x = 45,259.16 × 14,368.86
  4. Step 4: Simplify right side
    30,171.96x = 650,322,461.91
  5. Step 5: Solve for x
    x = 650,322,461.91/30,171.96
  6. Step 6: Final answer
    x = 21,553.87

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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.