Home / 20,355.91-30,533.93-7,208.66

Finding the Fourth Proportional to 20,355.91, 30,533.93 and 7,208.66

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Solution

The fourth proportional to 20,355.91, 30,533.93 and 7,208.66 is: 10,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.91 : 30,533.93 = 7,208.66 : x
  2. Step 2: Convert to fraction form
    20,355.91/30,533.93 = 7,208.66/x
  3. Step 3: Cross multiply
    20,355.91x = 30,533.93 × 7,208.66
  4. Step 4: Simplify right side
    20,355.91x = 220,108,787.16
  5. Step 5: Solve for x
    x = 220,108,787.16/20,355.91
  6. Step 6: Final answer
    x = 10,813.02

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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.