Home / 35,769.20-49,369.12-20,664.32

Finding the Fourth Proportional to 35,769.20, 49,369.12 and 20,664.32

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Solution

The fourth proportional to 35,769.20, 49,369.12 and 20,664.32 is: 28,521.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,769.20 : 49,369.12 = 20,664.32 : x
  2. Step 2: Convert to fraction form
    35,769.20/49,369.12 = 20,664.32/x
  3. Step 3: Cross multiply
    35,769.20x = 49,369.12 × 20,664.32
  4. Step 4: Simplify right side
    35,769.20x = 1,020,179,293.80
  5. Step 5: Solve for x
    x = 1,020,179,293.80/35,769.20
  6. Step 6: Final answer
    x = 28,521.17

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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.