Home / 39,677.02-54,754.38-21,772.17

Finding the Fourth Proportional to 39,677.02, 54,754.38 and 21,772.17

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Solution

The fourth proportional to 39,677.02, 54,754.38 and 21,772.17 is: 30,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.02 : 54,754.38 = 21,772.17 : x
  2. Step 2: Convert to fraction form
    39,677.02/54,754.38 = 21,772.17/x
  3. Step 3: Cross multiply
    39,677.02x = 54,754.38 × 21,772.17
  4. Step 4: Simplify right side
    39,677.02x = 1,192,121,669.60
  5. Step 5: Solve for x
    x = 1,192,121,669.60/39,677.02
  6. Step 6: Final answer
    x = 30,045.65

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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.