Home / 20,661.95-30,997.28-10,798.58

Finding the Fourth Proportional to 20,661.95, 30,997.28 and 10,798.58

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Solution

The fourth proportional to 20,661.95, 30,997.28 and 10,798.58 is: 16,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661.95 : 30,997.28 = 10,798.58 : x
  2. Step 2: Convert to fraction form
    20,661.95/30,997.28 = 10,798.58/x
  3. Step 3: Cross multiply
    20,661.95x = 30,997.28 × 10,798.58
  4. Step 4: Simplify right side
    20,661.95x = 334,726,607.86
  5. Step 5: Solve for x
    x = 334,726,607.86/20,661.95
  6. Step 6: Final answer
    x = 16,200.15

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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.