Home / 20,171.35-30,256.77-9,070.20

Finding the Fourth Proportional to 20,171.35, 30,256.77 and 9,070.20

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Solution

The fourth proportional to 20,171.35, 30,256.77 and 9,070.20 is: 13,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.35 : 30,256.77 = 9,070.20 : x
  2. Step 2: Convert to fraction form
    20,171.35/30,256.77 = 9,070.20/x
  3. Step 3: Cross multiply
    20,171.35x = 30,256.77 × 9,070.20
  4. Step 4: Simplify right side
    20,171.35x = 274,434,955.25
  5. Step 5: Solve for x
    x = 274,434,955.25/20,171.35
  6. Step 6: Final answer
    x = 13,605.19

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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.