Home / 28,633.76-39,497.12-18,943.20

Finding the Fourth Proportional to 28,633.76, 39,497.12 and 18,943.20

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Solution

The fourth proportional to 28,633.76, 39,497.12 and 18,943.20 is: 26,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.76 : 39,497.12 = 18,943.20 : x
  2. Step 2: Convert to fraction form
    28,633.76/39,497.12 = 18,943.20/x
  3. Step 3: Cross multiply
    28,633.76x = 39,497.12 × 18,943.20
  4. Step 4: Simplify right side
    28,633.76x = 748,201,843.58
  5. Step 5: Solve for x
    x = 748,201,843.58/28,633.76
  6. Step 6: Final answer
    x = 26,130.06

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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.