Home / 20,534.35-30,791.81-9,437.76

Finding the Fourth Proportional to 20,534.35, 30,791.81 and 9,437.76

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Solution

The fourth proportional to 20,534.35, 30,791.81 and 9,437.76 is: 14,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.35 : 30,791.81 = 9,437.76 : x
  2. Step 2: Convert to fraction form
    20,534.35/30,791.81 = 9,437.76/x
  3. Step 3: Cross multiply
    20,534.35x = 30,791.81 × 9,437.76
  4. Step 4: Simplify right side
    20,534.35x = 290,605,712.75
  5. Step 5: Solve for x
    x = 290,605,712.75/20,534.35
  6. Step 6: Final answer
    x = 14,152.17

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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.