Home / 30,065.03-45,113.11-21,813.16

Finding the Fourth Proportional to 30,065.03, 45,113.11 and 21,813.16

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Solution

The fourth proportional to 30,065.03, 45,113.11 and 21,813.16 is: 32,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.03 : 45,113.11 = 21,813.16 : x
  2. Step 2: Convert to fraction form
    30,065.03/45,113.11 = 21,813.16/x
  3. Step 3: Cross multiply
    30,065.03x = 45,113.11 × 21,813.16
  4. Step 4: Simplify right side
    30,065.03x = 984,059,362.90
  5. Step 5: Solve for x
    x = 984,059,362.90/30,065.03
  6. Step 6: Final answer
    x = 32,731.02

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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.