Home / 20,093.31-30,130.65-10,730.79

Finding the Fourth Proportional to 20,093.31, 30,130.65 and 10,730.79

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Solution

The fourth proportional to 20,093.31, 30,130.65 and 10,730.79 is: 16,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.31 : 30,130.65 = 10,730.79 : x
  2. Step 2: Convert to fraction form
    20,093.31/30,130.65 = 10,730.79/x
  3. Step 3: Cross multiply
    20,093.31x = 30,130.65 × 10,730.79
  4. Step 4: Simplify right side
    20,093.31x = 323,325,677.71
  5. Step 5: Solve for x
    x = 323,325,677.71/20,093.31
  6. Step 6: Final answer
    x = 16,091.21

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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.