Home / 20,305.12-27,969.02-14,326.32

Finding the Fourth Proportional to 20,305.12, 27,969.02 and 14,326.32

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Solution

The fourth proportional to 20,305.12, 27,969.02 and 14,326.32 is: 19,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.12 : 27,969.02 = 14,326.32 : x
  2. Step 2: Convert to fraction form
    20,305.12/27,969.02 = 14,326.32/x
  3. Step 3: Cross multiply
    20,305.12x = 27,969.02 × 14,326.32
  4. Step 4: Simplify right side
    20,305.12x = 400,693,130.61
  5. Step 5: Solve for x
    x = 400,693,130.61/20,305.12
  6. Step 6: Final answer
    x = 19,733.60

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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.