Home / 25,874.78-35,688.60-15,256.89

Finding the Fourth Proportional to 25,874.78, 35,688.60 and 15,256.89

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Solution

The fourth proportional to 25,874.78, 35,688.60 and 15,256.89 is: 21,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.78 : 35,688.60 = 15,256.89 : x
  2. Step 2: Convert to fraction form
    25,874.78/35,688.60 = 15,256.89/x
  3. Step 3: Cross multiply
    25,874.78x = 35,688.60 × 15,256.89
  4. Step 4: Simplify right side
    25,874.78x = 544,497,044.45
  5. Step 5: Solve for x
    x = 544,497,044.45/25,874.78
  6. Step 6: Final answer
    x = 21,043.55

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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.