Home / 20,443.10-30,664.65-13,444.70

Finding the Fourth Proportional to 20,443.10, 30,664.65 and 13,444.70

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Solution

The fourth proportional to 20,443.10, 30,664.65 and 13,444.70 is: 20,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.10 : 30,664.65 = 13,444.70 : x
  2. Step 2: Convert to fraction form
    20,443.10/30,664.65 = 13,444.70/x
  3. Step 3: Cross multiply
    20,443.10x = 30,664.65 × 13,444.70
  4. Step 4: Simplify right side
    20,443.10x = 412,277,019.86
  5. Step 5: Solve for x
    x = 412,277,019.86/20,443.10
  6. Step 6: Final answer
    x = 20,167.05

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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.