Home / 20,458.41-30,688.28-5,666.07

Finding the Fourth Proportional to 20,458.41, 30,688.28 and 5,666.07

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Solution

The fourth proportional to 20,458.41, 30,688.28 and 5,666.07 is: 8,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.41 : 30,688.28 = 5,666.07 : x
  2. Step 2: Convert to fraction form
    20,458.41/30,688.28 = 5,666.07/x
  3. Step 3: Cross multiply
    20,458.41x = 30,688.28 × 5,666.07
  4. Step 4: Simplify right side
    20,458.41x = 173,881,914.33
  5. Step 5: Solve for x
    x = 173,881,914.33/20,458.41
  6. Step 6: Final answer
    x = 8,499.29

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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.