Home / 39,479.94-54,483.03-21,575.70

Finding the Fourth Proportional to 39,479.94, 54,483.03 and 21,575.70

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Solution

The fourth proportional to 39,479.94, 54,483.03 and 21,575.70 is: 29,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.94 : 54,483.03 = 21,575.70 : x
  2. Step 2: Convert to fraction form
    39,479.94/54,483.03 = 21,575.70/x
  3. Step 3: Cross multiply
    39,479.94x = 54,483.03 × 21,575.70
  4. Step 4: Simplify right side
    39,479.94x = 1,175,509,510.37
  5. Step 5: Solve for x
    x = 1,175,509,510.37/39,479.94
  6. Step 6: Final answer
    x = 29,774.86

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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.