Home / 20,055.02-27,671.70-11,988.41

Finding the Fourth Proportional to 20,055.02, 27,671.70 and 11,988.41

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Solution

The fourth proportional to 20,055.02, 27,671.70 and 11,988.41 is: 16,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.02 : 27,671.70 = 11,988.41 : x
  2. Step 2: Convert to fraction form
    20,055.02/27,671.70 = 11,988.41/x
  3. Step 3: Cross multiply
    20,055.02x = 27,671.70 × 11,988.41
  4. Step 4: Simplify right side
    20,055.02x = 331,739,557.88
  5. Step 5: Solve for x
    x = 331,739,557.88/20,055.02
  6. Step 6: Final answer
    x = 16,541.47

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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.