Home / 20,559.11-30,838.75-4,976.71

Finding the Fourth Proportional to 20,559.11, 30,838.75 and 4,976.71

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Solution

The fourth proportional to 20,559.11, 30,838.75 and 4,976.71 is: 7,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.11 : 30,838.75 = 4,976.71 : x
  2. Step 2: Convert to fraction form
    20,559.11/30,838.75 = 4,976.71/x
  3. Step 3: Cross multiply
    20,559.11x = 30,838.75 × 4,976.71
  4. Step 4: Simplify right side
    20,559.11x = 153,475,490.63
  5. Step 5: Solve for x
    x = 153,475,490.63/20,559.11
  6. Step 6: Final answer
    x = 7,465.08

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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.