Home / 35,342.78-48,752.70-21,187.40

Finding the Fourth Proportional to 35,342.78, 48,752.70 and 21,187.40

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Solution

The fourth proportional to 35,342.78, 48,752.70 and 21,187.40 is: 29,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,342.78 : 48,752.70 = 21,187.40 : x
  2. Step 2: Convert to fraction form
    35,342.78/48,752.70 = 21,187.40/x
  3. Step 3: Cross multiply
    35,342.78x = 48,752.70 × 21,187.40
  4. Step 4: Simplify right side
    35,342.78x = 1,032,942,955.98
  5. Step 5: Solve for x
    x = 1,032,942,955.98/35,342.78
  6. Step 6: Final answer
    x = 29,226.42

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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.