Home / 20,447.56-30,671.25-5,656.45

Finding the Fourth Proportional to 20,447.56, 30,671.25 and 5,656.45

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Solution

The fourth proportional to 20,447.56, 30,671.25 and 5,656.45 is: 8,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.56 : 30,671.25 = 5,656.45 : x
  2. Step 2: Convert to fraction form
    20,447.56/30,671.25 = 5,656.45/x
  3. Step 3: Cross multiply
    20,447.56x = 30,671.25 × 5,656.45
  4. Step 4: Simplify right side
    20,447.56x = 173,490,392.06
  5. Step 5: Solve for x
    x = 173,490,392.06/20,447.56
  6. Step 6: Final answer
    x = 8,484.65

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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.