Home / 42,279.12-63,450.81-15,650.30

Finding the Fourth Proportional to 42,279.12, 63,450.81 and 15,650.30

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Solution

The fourth proportional to 42,279.12, 63,450.81 and 15,650.30 is: 23,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.12 : 63,450.81 = 15,650.30 : x
  2. Step 2: Convert to fraction form
    42,279.12/63,450.81 = 15,650.30/x
  3. Step 3: Cross multiply
    42,279.12x = 63,450.81 × 15,650.30
  4. Step 4: Simplify right side
    42,279.12x = 993,024,370.37
  5. Step 5: Solve for x
    x = 993,024,370.37/42,279.12
  6. Step 6: Final answer
    x = 23,487.35

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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.