Home / 28,182.57-38,891.82-15,607.32

Finding the Fourth Proportional to 28,182.57, 38,891.82 and 15,607.32

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Solution

The fourth proportional to 28,182.57, 38,891.82 and 15,607.32 is: 21,538.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.57 : 38,891.82 = 15,607.32 : x
  2. Step 2: Convert to fraction form
    28,182.57/38,891.82 = 15,607.32/x
  3. Step 3: Cross multiply
    28,182.57x = 38,891.82 × 15,607.32
  4. Step 4: Simplify right side
    28,182.57x = 606,997,080.12
  5. Step 5: Solve for x
    x = 606,997,080.12/28,182.57
  6. Step 6: Final answer
    x = 21,538.03

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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.