Home / 21,339.32-29,448.23-11,907.86

Finding the Fourth Proportional to 21,339.32, 29,448.23 and 11,907.86

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Solution

The fourth proportional to 21,339.32, 29,448.23 and 11,907.86 is: 16,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.32 : 29,448.23 = 11,907.86 : x
  2. Step 2: Convert to fraction form
    21,339.32/29,448.23 = 11,907.86/x
  3. Step 3: Cross multiply
    21,339.32x = 29,448.23 × 11,907.86
  4. Step 4: Simplify right side
    21,339.32x = 350,665,193.31
  5. Step 5: Solve for x
    x = 350,665,193.31/21,339.32
  6. Step 6: Final answer
    x = 16,432.82

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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.