Home / 28,547.52-39,398.04-15,972

Finding the Fourth Proportional to 28,547.52, 39,398.04 and 15,972

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Solution

The fourth proportional to 28,547.52, 39,398.04 and 15,972 is: 22,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.52 : 39,398.04 = 15,972 : x
  2. Step 2: Convert to fraction form
    28,547.52/39,398.04 = 15,972/x
  3. Step 3: Cross multiply
    28,547.52x = 39,398.04 × 15,972
  4. Step 4: Simplify right side
    28,547.52x = 629,265,494.88
  5. Step 5: Solve for x
    x = 629,265,494.88/28,547.52
  6. Step 6: Final answer
    x = 22,042.74

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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.