Home / 20,210.96-30,312.12-6,356.88

Finding the Fourth Proportional to 20,210.96, 30,312.12 and 6,356.88

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Solution

The fourth proportional to 20,210.96, 30,312.12 and 6,356.88 is: 9,533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.96 : 30,312.12 = 6,356.88 : x
  2. Step 2: Convert to fraction form
    20,210.96/30,312.12 = 6,356.88/x
  3. Step 3: Cross multiply
    20,210.96x = 30,312.12 × 6,356.88
  4. Step 4: Simplify right side
    20,210.96x = 192,690,509.39
  5. Step 5: Solve for x
    x = 192,690,509.39/20,210.96
  6. Step 6: Final answer
    x = 9,533.96

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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.