Home / 39,280.32-54,205.92-21,375.36

Finding the Fourth Proportional to 39,280.32, 54,205.92 and 21,375.36

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Solution

The fourth proportional to 39,280.32, 54,205.92 and 21,375.36 is: 29,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.32 : 54,205.92 = 21,375.36 : x
  2. Step 2: Convert to fraction form
    39,280.32/54,205.92 = 21,375.36/x
  3. Step 3: Cross multiply
    39,280.32x = 54,205.92 × 21,375.36
  4. Step 4: Simplify right side
    39,280.32x = 1,158,671,054.13
  5. Step 5: Solve for x
    x = 1,158,671,054.13/39,280.32
  6. Step 6: Final answer
    x = 29,497.50

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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.