Home / 39,583.40-54,625.17-21,434.32

Finding the Fourth Proportional to 39,583.40, 54,625.17 and 21,434.32

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Solution

The fourth proportional to 39,583.40, 54,625.17 and 21,434.32 is: 29,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.40 : 54,625.17 = 21,434.32 : x
  2. Step 2: Convert to fraction form
    39,583.40/54,625.17 = 21,434.32/x
  3. Step 3: Cross multiply
    39,583.40x = 54,625.17 × 21,434.32
  4. Step 4: Simplify right side
    39,583.40x = 1,170,853,237.27
  5. Step 5: Solve for x
    x = 1,170,853,237.27/39,583.40
  6. Step 6: Final answer
    x = 29,579.40

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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.