Home / 20,700.36-31,050.81-5,909.27

Finding the Fourth Proportional to 20,700.36, 31,050.81 and 5,909.27

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Solution

The fourth proportional to 20,700.36, 31,050.81 and 5,909.27 is: 8,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.36 : 31,050.81 = 5,909.27 : x
  2. Step 2: Convert to fraction form
    20,700.36/31,050.81 = 5,909.27/x
  3. Step 3: Cross multiply
    20,700.36x = 31,050.81 × 5,909.27
  4. Step 4: Simplify right side
    20,700.36x = 183,487,464.75
  5. Step 5: Solve for x
    x = 183,487,464.75/20,700.36
  6. Step 6: Final answer
    x = 8,863.97

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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.