Home / 39,478.34-54,477.81-21,573.49

Finding the Fourth Proportional to 39,478.34, 54,477.81 and 21,573.49

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Solution

The fourth proportional to 39,478.34, 54,477.81 and 21,573.49 is: 29,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.34 : 54,477.81 = 21,573.49 : x
  2. Step 2: Convert to fraction form
    39,478.34/54,477.81 = 21,573.49/x
  3. Step 3: Cross multiply
    39,478.34x = 54,477.81 × 21,573.49
  4. Step 4: Simplify right side
    39,478.34x = 1,175,276,489.26
  5. Step 5: Solve for x
    x = 1,175,276,489.26/39,478.34
  6. Step 6: Final answer
    x = 29,770.16

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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.