Home / 20,609.32-30,916.36-6,564.40

Finding the Fourth Proportional to 20,609.32, 30,916.36 and 6,564.40

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Solution

The fourth proportional to 20,609.32, 30,916.36 and 6,564.40 is: 9,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.32 : 30,916.36 = 6,564.40 : x
  2. Step 2: Convert to fraction form
    20,609.32/30,916.36 = 6,564.40/x
  3. Step 3: Cross multiply
    20,609.32x = 30,916.36 × 6,564.40
  4. Step 4: Simplify right side
    20,609.32x = 202,947,353.58
  5. Step 5: Solve for x
    x = 202,947,353.58/20,609.32
  6. Step 6: Final answer
    x = 9,847.36

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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.