Home / 28,252.74-38,988.40-15,506.04

Finding the Fourth Proportional to 28,252.74, 38,988.40 and 15,506.04

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Solution

The fourth proportional to 28,252.74, 38,988.40 and 15,506.04 is: 21,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.74 : 38,988.40 = 15,506.04 : x
  2. Step 2: Convert to fraction form
    28,252.74/38,988.40 = 15,506.04/x
  3. Step 3: Cross multiply
    28,252.74x = 38,988.40 × 15,506.04
  4. Step 4: Simplify right side
    28,252.74x = 604,555,689.94
  5. Step 5: Solve for x
    x = 604,555,689.94/28,252.74
  6. Step 6: Final answer
    x = 21,398.13

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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.