Home / 20,320.65-30,483.81-6,281.82

Finding the Fourth Proportional to 20,320.65, 30,483.81 and 6,281.82

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Solution

The fourth proportional to 20,320.65, 30,483.81 and 6,281.82 is: 9,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.65 : 30,483.81 = 6,281.82 : x
  2. Step 2: Convert to fraction form
    20,320.65/30,483.81 = 6,281.82/x
  3. Step 3: Cross multiply
    20,320.65x = 30,483.81 × 6,281.82
  4. Step 4: Simplify right side
    20,320.65x = 191,493,807.33
  5. Step 5: Solve for x
    x = 191,493,807.33/20,320.65
  6. Step 6: Final answer
    x = 9,423.61

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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.