Home / 34,678.78-47,856.50-18,763.35

Finding the Fourth Proportional to 34,678.78, 47,856.50 and 18,763.35

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Solution

The fourth proportional to 34,678.78, 47,856.50 and 18,763.35 is: 25,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,678.78 : 47,856.50 = 18,763.35 : x
  2. Step 2: Convert to fraction form
    34,678.78/47,856.50 = 18,763.35/x
  3. Step 3: Cross multiply
    34,678.78x = 47,856.50 × 18,763.35
  4. Step 4: Simplify right side
    34,678.78x = 897,948,161.90
  5. Step 5: Solve for x
    x = 897,948,161.90/34,678.78
  6. Step 6: Final answer
    x = 25,893.30

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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.