Home / 35,724.72-49,299.70-20,617.20

Finding the Fourth Proportional to 35,724.72, 49,299.70 and 20,617.20

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Solution

The fourth proportional to 35,724.72, 49,299.70 and 20,617.20 is: 28,451.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,724.72 : 49,299.70 = 20,617.20 : x
  2. Step 2: Convert to fraction form
    35,724.72/49,299.70 = 20,617.20/x
  3. Step 3: Cross multiply
    35,724.72x = 49,299.70 × 20,617.20
  4. Step 4: Simplify right side
    35,724.72x = 1,016,421,774.84
  5. Step 5: Solve for x
    x = 1,016,421,774.84/35,724.72
  6. Step 6: Final answer
    x = 28,451.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.