Home / 22,300.11-30,812.40-21,501.86

Finding the Fourth Proportional to 22,300.11, 30,812.40 and 21,501.86

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Solution

The fourth proportional to 22,300.11, 30,812.40 and 21,501.86 is: 29,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,300.11 : 30,812.40 = 21,501.86 : x
  2. Step 2: Convert to fraction form
    22,300.11/30,812.40 = 21,501.86/x
  3. Step 3: Cross multiply
    22,300.11x = 30,812.40 × 21,501.86
  4. Step 4: Simplify right side
    22,300.11x = 662,523,757.00
  5. Step 5: Solve for x
    x = 662,523,757.00/22,300.11
  6. Step 6: Final answer
    x = 29,709.44

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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.