Home / 42,122.90-63,183.14-17,156.78

Finding the Fourth Proportional to 42,122.90, 63,183.14 and 17,156.78

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Solution

The fourth proportional to 42,122.90, 63,183.14 and 17,156.78 is: 25,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.90 : 63,183.14 = 17,156.78 : x
  2. Step 2: Convert to fraction form
    42,122.90/63,183.14 = 17,156.78/x
  3. Step 3: Cross multiply
    42,122.90x = 63,183.14 × 17,156.78
  4. Step 4: Simplify right side
    42,122.90x = 1,084,018,830.99
  5. Step 5: Solve for x
    x = 1,084,018,830.99/42,122.90
  6. Step 6: Final answer
    x = 25,734.67

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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.