Home / 34,678.63-47,856.90-18,763.39

Finding the Fourth Proportional to 34,678.63, 47,856.90 and 18,763.39

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Solution

The fourth proportional to 34,678.63, 47,856.90 and 18,763.39 is: 25,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,678.63 : 47,856.90 = 18,763.39 : x
  2. Step 2: Convert to fraction form
    34,678.63/47,856.90 = 18,763.39/x
  3. Step 3: Cross multiply
    34,678.63x = 47,856.90 × 18,763.39
  4. Step 4: Simplify right side
    34,678.63x = 897,957,678.89
  5. Step 5: Solve for x
    x = 897,957,678.89/34,678.63
  6. Step 6: Final answer
    x = 25,893.69

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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.