Home / 39,476.57-54,478.37-21,572.33

Finding the Fourth Proportional to 39,476.57, 54,478.37 and 21,572.33

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Solution

The fourth proportional to 39,476.57, 54,478.37 and 21,572.33 is: 29,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,476.57 : 54,478.37 = 21,572.33 : x
  2. Step 2: Convert to fraction form
    39,476.57/54,478.37 = 21,572.33/x
  3. Step 3: Cross multiply
    39,476.57x = 54,478.37 × 21,572.33
  4. Step 4: Simplify right side
    39,476.57x = 1,175,225,157.04
  5. Step 5: Solve for x
    x = 1,175,225,157.04/39,476.57
  6. Step 6: Final answer
    x = 29,770.20

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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.