Home / 20,355.89-30,535.76-6,316.07

Finding the Fourth Proportional to 20,355.89, 30,535.76 and 6,316.07

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Solution

The fourth proportional to 20,355.89, 30,535.76 and 6,316.07 is: 9,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.89 : 30,535.76 = 6,316.07 : x
  2. Step 2: Convert to fraction form
    20,355.89/30,535.76 = 6,316.07/x
  3. Step 3: Cross multiply
    20,355.89x = 30,535.76 × 6,316.07
  4. Step 4: Simplify right side
    20,355.89x = 192,865,813.40
  5. Step 5: Solve for x
    x = 192,865,813.40/20,355.89
  6. Step 6: Final answer
    x = 9,474.70

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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.