Home / 39,517.74-54,534.37-21,368.34

Finding the Fourth Proportional to 39,517.74, 54,534.37 and 21,368.34

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Solution

The fourth proportional to 39,517.74, 54,534.37 and 21,368.34 is: 29,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.74 : 54,534.37 = 21,368.34 : x
  2. Step 2: Convert to fraction form
    39,517.74/54,534.37 = 21,368.34/x
  3. Step 3: Cross multiply
    39,517.74x = 54,534.37 × 21,368.34
  4. Step 4: Simplify right side
    39,517.74x = 1,165,308,886.39
  5. Step 5: Solve for x
    x = 1,165,308,886.39/39,517.74
  6. Step 6: Final answer
    x = 29,488.25

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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.