Home / 28,917.61-43,401.02-20,617.94

Finding the Fourth Proportional to 28,917.61, 43,401.02 and 20,617.94

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Solution

The fourth proportional to 28,917.61, 43,401.02 and 20,617.94 is: 30,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.61 : 43,401.02 = 20,617.94 : x
  2. Step 2: Convert to fraction form
    28,917.61/43,401.02 = 20,617.94/x
  3. Step 3: Cross multiply
    28,917.61x = 43,401.02 × 20,617.94
  4. Step 4: Simplify right side
    28,917.61x = 894,839,631.71
  5. Step 5: Solve for x
    x = 894,839,631.71/28,917.61
  6. Step 6: Final answer
    x = 30,944.46

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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.