Home / 30,660.72-45,994.32-13,125.84

Finding the Fourth Proportional to 30,660.72, 45,994.32 and 13,125.84

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Solution

The fourth proportional to 30,660.72, 45,994.32 and 13,125.84 is: 19,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.72 : 45,994.32 = 13,125.84 : x
  2. Step 2: Convert to fraction form
    30,660.72/45,994.32 = 13,125.84/x
  3. Step 3: Cross multiply
    30,660.72x = 45,994.32 × 13,125.84
  4. Step 4: Simplify right side
    30,660.72x = 603,714,085.23
  5. Step 5: Solve for x
    x = 603,714,085.23/30,660.72
  6. Step 6: Final answer
    x = 19,690.15

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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.