Home / 20,752.14-31,128.18-6,901.14

Finding the Fourth Proportional to 20,752.14, 31,128.18 and 6,901.14

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Solution

The fourth proportional to 20,752.14, 31,128.18 and 6,901.14 is: 10,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.14 : 31,128.18 = 6,901.14 : x
  2. Step 2: Convert to fraction form
    20,752.14/31,128.18 = 6,901.14/x
  3. Step 3: Cross multiply
    20,752.14x = 31,128.18 × 6,901.14
  4. Step 4: Simplify right side
    20,752.14x = 214,819,928.13
  5. Step 5: Solve for x
    x = 214,819,928.13/20,752.14
  6. Step 6: Final answer
    x = 10,351.70

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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.