Home / 20,072.02-27,700.95-11,120.35

Finding the Fourth Proportional to 20,072.02, 27,700.95 and 11,120.35

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Solution

The fourth proportional to 20,072.02, 27,700.95 and 11,120.35 is: 15,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.02 : 27,700.95 = 11,120.35 : x
  2. Step 2: Convert to fraction form
    20,072.02/27,700.95 = 11,120.35/x
  3. Step 3: Cross multiply
    20,072.02x = 27,700.95 × 11,120.35
  4. Step 4: Simplify right side
    20,072.02x = 308,044,259.33
  5. Step 5: Solve for x
    x = 308,044,259.33/20,072.02
  6. Step 6: Final answer
    x = 15,346.95

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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.