Home / 20,434.59-30,653.66-5,643.52

Finding the Fourth Proportional to 20,434.59, 30,653.66 and 5,643.52

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Solution

The fourth proportional to 20,434.59, 30,653.66 and 5,643.52 is: 8,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.59 : 30,653.66 = 5,643.52 : x
  2. Step 2: Convert to fraction form
    20,434.59/30,653.66 = 5,643.52/x
  3. Step 3: Cross multiply
    20,434.59x = 30,653.66 × 5,643.52
  4. Step 4: Simplify right side
    20,434.59x = 172,994,438.43
  5. Step 5: Solve for x
    x = 172,994,438.43/20,434.59
  6. Step 6: Final answer
    x = 8,465.77

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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.