Home / 20,478.33-30,714.07-5,688.74

Finding the Fourth Proportional to 20,478.33, 30,714.07 and 5,688.74

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Solution

The fourth proportional to 20,478.33, 30,714.07 and 5,688.74 is: 8,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478.33 : 30,714.07 = 5,688.74 : x
  2. Step 2: Convert to fraction form
    20,478.33/30,714.07 = 5,688.74/x
  3. Step 3: Cross multiply
    20,478.33x = 30,714.07 × 5,688.74
  4. Step 4: Simplify right side
    20,478.33x = 174,724,358.57
  5. Step 5: Solve for x
    x = 174,724,358.57/20,478.33
  6. Step 6: Final answer
    x = 8,532.16

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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.