Home / 20,295.34-30,487.02-17,181.70

Finding the Fourth Proportional to 20,295.34, 30,487.02 and 17,181.70

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Solution

The fourth proportional to 20,295.34, 30,487.02 and 17,181.70 is: 25,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.34 : 30,487.02 = 17,181.70 : x
  2. Step 2: Convert to fraction form
    20,295.34/30,487.02 = 17,181.70/x
  3. Step 3: Cross multiply
    20,295.34x = 30,487.02 × 17,181.70
  4. Step 4: Simplify right side
    20,295.34x = 523,818,831.53
  5. Step 5: Solve for x
    x = 523,818,831.53/20,295.34
  6. Step 6: Final answer
    x = 25,809.81

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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.