Home / 35,759.12-49,340.40-21,612.76

Finding the Fourth Proportional to 35,759.12, 49,340.40 and 21,612.76

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Solution

The fourth proportional to 35,759.12, 49,340.40 and 21,612.76 is: 29,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,759.12 : 49,340.40 = 21,612.76 : x
  2. Step 2: Convert to fraction form
    35,759.12/49,340.40 = 21,612.76/x
  3. Step 3: Cross multiply
    35,759.12x = 49,340.40 × 21,612.76
  4. Step 4: Simplify right side
    35,759.12x = 1,066,382,223.50
  5. Step 5: Solve for x
    x = 1,066,382,223.50/35,759.12
  6. Step 6: Final answer
    x = 29,821.27

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Half scale
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Double scale
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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.