Home / 25,446.78-38,144.04-10,664.28

Finding the Fourth Proportional to 25,446.78, 38,144.04 and 10,664.28

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Solution

The fourth proportional to 25,446.78, 38,144.04 and 10,664.28 is: 15,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,446.78 : 38,144.04 = 10,664.28 : x
  2. Step 2: Convert to fraction form
    25,446.78/38,144.04 = 10,664.28/x
  3. Step 3: Cross multiply
    25,446.78x = 38,144.04 × 10,664.28
  4. Step 4: Simplify right side
    25,446.78x = 406,778,722.89
  5. Step 5: Solve for x
    x = 406,778,722.89/25,446.78
  6. Step 6: Final answer
    x = 15,985.47

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1.5x scale

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.