Home / 35,300.80-48,720.20-21,154.96

Finding the Fourth Proportional to 35,300.80, 48,720.20 and 21,154.96

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Solution

The fourth proportional to 35,300.80, 48,720.20 and 21,154.96 is: 29,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,300.80 : 48,720.20 = 21,154.96 : x
  2. Step 2: Convert to fraction form
    35,300.80/48,720.20 = 21,154.96/x
  3. Step 3: Cross multiply
    35,300.80x = 48,720.20 × 21,154.96
  4. Step 4: Simplify right side
    35,300.80x = 1,030,673,776.42
  5. Step 5: Solve for x
    x = 1,030,673,776.42/35,300.80
  6. Step 6: Final answer
    x = 29,196.90

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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.