Home / 20,155.14-30,218.26-9,475.52

Finding the Fourth Proportional to 20,155.14, 30,218.26 and 9,475.52

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Solution

The fourth proportional to 20,155.14, 30,218.26 and 9,475.52 is: 14,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.14 : 30,218.26 = 9,475.52 : x
  2. Step 2: Convert to fraction form
    20,155.14/30,218.26 = 9,475.52/x
  3. Step 3: Cross multiply
    20,155.14x = 30,218.26 × 9,475.52
  4. Step 4: Simplify right side
    20,155.14x = 286,333,727.00
  5. Step 5: Solve for x
    x = 286,333,727.00/20,155.14
  6. Step 6: Final answer
    x = 14,206.49

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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.