Home / 39,050.66-53,890.16-21,145.82

Finding the Fourth Proportional to 39,050.66, 53,890.16 and 21,145.82

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Solution

The fourth proportional to 39,050.66, 53,890.16 and 21,145.82 is: 29,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,050.66 : 53,890.16 = 21,145.82 : x
  2. Step 2: Convert to fraction form
    39,050.66/53,890.16 = 21,145.82/x
  3. Step 3: Cross multiply
    39,050.66x = 53,890.16 × 21,145.82
  4. Step 4: Simplify right side
    39,050.66x = 1,139,551,247.95
  5. Step 5: Solve for x
    x = 1,139,551,247.95/39,050.66
  6. Step 6: Final answer
    x = 29,181.36

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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.