Home / 35,427.84-48,890.43-21,280.65

Finding the Fourth Proportional to 35,427.84, 48,890.43 and 21,280.65

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Solution

The fourth proportional to 35,427.84, 48,890.43 and 21,280.65 is: 29,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,427.84 : 48,890.43 = 21,280.65 : x
  2. Step 2: Convert to fraction form
    35,427.84/48,890.43 = 21,280.65/x
  3. Step 3: Cross multiply
    35,427.84x = 48,890.43 × 21,280.65
  4. Step 4: Simplify right side
    35,427.84x = 1,040,420,129.18
  5. Step 5: Solve for x
    x = 1,040,420,129.18/35,427.84
  6. Step 6: Final answer
    x = 29,367.30

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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.