Home / 20,362.29-30,543.83-13,386.79

Finding the Fourth Proportional to 20,362.29, 30,543.83 and 13,386.79

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Solution

The fourth proportional to 20,362.29, 30,543.83 and 13,386.79 is: 20,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.29 : 30,543.83 = 13,386.79 : x
  2. Step 2: Convert to fraction form
    20,362.29/30,543.83 = 13,386.79/x
  3. Step 3: Cross multiply
    20,362.29x = 30,543.83 × 13,386.79
  4. Step 4: Simplify right side
    20,362.29x = 408,883,838.01
  5. Step 5: Solve for x
    x = 408,883,838.01/20,362.29
  6. Step 6: Final answer
    x = 20,080.44

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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.