Home / 39,616.63-54,671.38-21,711.25

Finding the Fourth Proportional to 39,616.63, 54,671.38 and 21,711.25

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Solution

The fourth proportional to 39,616.63, 54,671.38 and 21,711.25 is: 29,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,616.63 : 54,671.38 = 21,711.25 : x
  2. Step 2: Convert to fraction form
    39,616.63/54,671.38 = 21,711.25/x
  3. Step 3: Cross multiply
    39,616.63x = 54,671.38 × 21,711.25
  4. Step 4: Simplify right side
    39,616.63x = 1,186,983,808.07
  5. Step 5: Solve for x
    x = 1,186,983,808.07/39,616.63
  6. Step 6: Final answer
    x = 29,961.76

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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.