Home / 20,051.28-30,077.28-5,261.46

Finding the Fourth Proportional to 20,051.28, 30,077.28 and 5,261.46

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Solution

The fourth proportional to 20,051.28, 30,077.28 and 5,261.46 is: 7,892.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.28 : 30,077.28 = 5,261.46 : x
  2. Step 2: Convert to fraction form
    20,051.28/30,077.28 = 5,261.46/x
  3. Step 3: Cross multiply
    20,051.28x = 30,077.28 × 5,261.46
  4. Step 4: Simplify right side
    20,051.28x = 158,250,405.63
  5. Step 5: Solve for x
    x = 158,250,405.63/20,051.28
  6. Step 6: Final answer
    x = 7,892.28

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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.