Home / 30,281.01-41,778.27-21,333.45

Finding the Fourth Proportional to 30,281.01, 41,778.27 and 21,333.45

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Solution

The fourth proportional to 30,281.01, 41,778.27 and 21,333.45 is: 29,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.01 : 41,778.27 = 21,333.45 : x
  2. Step 2: Convert to fraction form
    30,281.01/41,778.27 = 21,333.45/x
  3. Step 3: Cross multiply
    30,281.01x = 41,778.27 × 21,333.45
  4. Step 4: Simplify right side
    30,281.01x = 891,274,634.13
  5. Step 5: Solve for x
    x = 891,274,634.13/30,281.01
  6. Step 6: Final answer
    x = 29,433.45

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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.