Home / 20,086.47-30,133.12-6,935.76

Finding the Fourth Proportional to 20,086.47, 30,133.12 and 6,935.76

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Solution

The fourth proportional to 20,086.47, 30,133.12 and 6,935.76 is: 10,404.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.47 : 30,133.12 = 6,935.76 : x
  2. Step 2: Convert to fraction form
    20,086.47/30,133.12 = 6,935.76/x
  3. Step 3: Cross multiply
    20,086.47x = 30,133.12 × 6,935.76
  4. Step 4: Simplify right side
    20,086.47x = 208,996,088.37
  5. Step 5: Solve for x
    x = 208,996,088.37/20,086.47
  6. Step 6: Final answer
    x = 10,404.82

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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.