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Finding the Fourth Proportional to 25,547, 38,320.50 and 7,079

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Solution

The fourth proportional to 25,547, 38,320.50 and 7,079 is: 10,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,547 : 38,320.50 = 7,079 : x
  2. Step 2: Convert to fraction form
    25,547/38,320.50 = 7,079/x
  3. Step 3: Cross multiply
    25,547x = 38,320.50 × 7,079
  4. Step 4: Simplify right side
    25,547x = 271,270,819.50
  5. Step 5: Solve for x
    x = 271,270,819.50/25,547
  6. Step 6: Final answer
    x = 10,618.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.