Home / 20,434.19-30,651.67-5,643.50

Finding the Fourth Proportional to 20,434.19, 30,651.67 and 5,643.50

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Solution

The fourth proportional to 20,434.19, 30,651.67 and 5,643.50 is: 8,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.19 : 30,651.67 = 5,643.50 : x
  2. Step 2: Convert to fraction form
    20,434.19/30,651.67 = 5,643.50/x
  3. Step 3: Cross multiply
    20,434.19x = 30,651.67 × 5,643.50
  4. Step 4: Simplify right side
    20,434.19x = 172,982,725.86
  5. Step 5: Solve for x
    x = 172,982,725.86/20,434.19
  6. Step 6: Final answer
    x = 8,465.36

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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.