Home / 30,521.46-45,832.99-20,590.12

Finding the Fourth Proportional to 30,521.46, 45,832.99 and 20,590.12

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Solution

The fourth proportional to 30,521.46, 45,832.99 and 20,590.12 is: 30,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.46 : 45,832.99 = 20,590.12 : x
  2. Step 2: Convert to fraction form
    30,521.46/45,832.99 = 20,590.12/x
  3. Step 3: Cross multiply
    30,521.46x = 45,832.99 × 20,590.12
  4. Step 4: Simplify right side
    30,521.46x = 943,706,808.48
  5. Step 5: Solve for x
    x = 943,706,808.48/30,521.46
  6. Step 6: Final answer
    x = 30,919.45

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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.