Home / 35,278.96-48,681.42-21,131.44

Finding the Fourth Proportional to 35,278.96, 48,681.42 and 21,131.44

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Solution

The fourth proportional to 35,278.96, 48,681.42 and 21,131.44 is: 29,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,278.96 : 48,681.42 = 21,131.44 : x
  2. Step 2: Convert to fraction form
    35,278.96/48,681.42 = 21,131.44/x
  3. Step 3: Cross multiply
    35,278.96x = 48,681.42 × 21,131.44
  4. Step 4: Simplify right side
    35,278.96x = 1,028,708,505.84
  5. Step 5: Solve for x
    x = 1,028,708,505.84/35,278.96
  6. Step 6: Final answer
    x = 29,159.26

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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.