Home / 28,068.12-38,732.58-15,490.44

Finding the Fourth Proportional to 28,068.12, 38,732.58 and 15,490.44

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Solution

The fourth proportional to 28,068.12, 38,732.58 and 15,490.44 is: 21,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.12 : 38,732.58 = 15,490.44 : x
  2. Step 2: Convert to fraction form
    28,068.12/38,732.58 = 15,490.44/x
  3. Step 3: Cross multiply
    28,068.12x = 38,732.58 × 15,490.44
  4. Step 4: Simplify right side
    28,068.12x = 599,984,706.54
  5. Step 5: Solve for x
    x = 599,984,706.54/28,068.12
  6. Step 6: Final answer
    x = 21,376.02

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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.