Home / 20,358.90-30,541.98-10,495.52

Finding the Fourth Proportional to 20,358.90, 30,541.98 and 10,495.52

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Solution

The fourth proportional to 20,358.90, 30,541.98 and 10,495.52 is: 15,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.90 : 30,541.98 = 10,495.52 : x
  2. Step 2: Convert to fraction form
    20,358.90/30,541.98 = 10,495.52/x
  3. Step 3: Cross multiply
    20,358.90x = 30,541.98 × 10,495.52
  4. Step 4: Simplify right side
    20,358.90x = 320,553,961.93
  5. Step 5: Solve for x
    x = 320,553,961.93/20,358.90
  6. Step 6: Final answer
    x = 15,745.15

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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.