Home / 27,664.02-38,187.81-20,578.14

Finding the Fourth Proportional to 27,664.02, 38,187.81 and 20,578.14

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Solution

The fourth proportional to 27,664.02, 38,187.81 and 20,578.14 is: 28,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.02 : 38,187.81 = 20,578.14 : x
  2. Step 2: Convert to fraction form
    27,664.02/38,187.81 = 20,578.14/x
  3. Step 3: Cross multiply
    27,664.02x = 38,187.81 × 20,578.14
  4. Step 4: Simplify right side
    27,664.02x = 785,834,100.47
  5. Step 5: Solve for x
    x = 785,834,100.47/27,664.02
  6. Step 6: Final answer
    x = 28,406.36

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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.