Home / 35,115.32-48,450.15-20,774.48

Finding the Fourth Proportional to 35,115.32, 48,450.15 and 20,774.48

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Solution

The fourth proportional to 35,115.32, 48,450.15 and 20,774.48 is: 28,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,115.32 : 48,450.15 = 20,774.48 : x
  2. Step 2: Convert to fraction form
    35,115.32/48,450.15 = 20,774.48/x
  3. Step 3: Cross multiply
    35,115.32x = 48,450.15 × 20,774.48
  4. Step 4: Simplify right side
    35,115.32x = 1,006,526,429.92
  5. Step 5: Solve for x
    x = 1,006,526,429.92/35,115.32
  6. Step 6: Final answer
    x = 28,663.45

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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.