Home / 28,257.65-38,995.88-17,653.44

Finding the Fourth Proportional to 28,257.65, 38,995.88 and 17,653.44

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Solution

The fourth proportional to 28,257.65, 38,995.88 and 17,653.44 is: 24,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.65 : 38,995.88 = 17,653.44 : x
  2. Step 2: Convert to fraction form
    28,257.65/38,995.88 = 17,653.44/x
  3. Step 3: Cross multiply
    28,257.65x = 38,995.88 × 17,653.44
  4. Step 4: Simplify right side
    28,257.65x = 688,411,339.56
  5. Step 5: Solve for x
    x = 688,411,339.56/28,257.65
  6. Step 6: Final answer
    x = 24,361.95

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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.