Home / 39,480.59-54,483.98-21,576.69

Finding the Fourth Proportional to 39,480.59, 54,483.98 and 21,576.69

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Solution

The fourth proportional to 39,480.59, 54,483.98 and 21,576.69 is: 29,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,480.59 : 54,483.98 = 21,576.69 : x
  2. Step 2: Convert to fraction form
    39,480.59/54,483.98 = 21,576.69/x
  3. Step 3: Cross multiply
    39,480.59x = 54,483.98 × 21,576.69
  4. Step 4: Simplify right side
    39,480.59x = 1,175,583,838.54
  5. Step 5: Solve for x
    x = 1,175,583,838.54/39,480.59
  6. Step 6: Final answer
    x = 29,776.25

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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.