Home / 20,513.96-30,775.05-6,476.15

Finding the Fourth Proportional to 20,513.96, 30,775.05 and 6,476.15

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Solution

The fourth proportional to 20,513.96, 30,775.05 and 6,476.15 is: 9,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.96 : 30,775.05 = 6,476.15 : x
  2. Step 2: Convert to fraction form
    20,513.96/30,775.05 = 6,476.15/x
  3. Step 3: Cross multiply
    20,513.96x = 30,775.05 × 6,476.15
  4. Step 4: Simplify right side
    20,513.96x = 199,303,686.18
  5. Step 5: Solve for x
    x = 199,303,686.18/20,513.96
  6. Step 6: Final answer
    x = 9,715.52

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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.