Home / 39,860.02-55,006.23-21,955.06

Finding the Fourth Proportional to 39,860.02, 55,006.23 and 21,955.06

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Solution

The fourth proportional to 39,860.02, 55,006.23 and 21,955.06 is: 30,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860.02 : 55,006.23 = 21,955.06 : x
  2. Step 2: Convert to fraction form
    39,860.02/55,006.23 = 21,955.06/x
  3. Step 3: Cross multiply
    39,860.02x = 55,006.23 × 21,955.06
  4. Step 4: Simplify right side
    39,860.02x = 1,207,665,080.02
  5. Step 5: Solve for x
    x = 1,207,665,080.02/39,860.02
  6. Step 6: Final answer
    x = 30,297.65

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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.