Home / 22,905.07-34,338.11-10,420.72

Finding the Fourth Proportional to 22,905.07, 34,338.11 and 10,420.72

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Solution

The fourth proportional to 22,905.07, 34,338.11 and 10,420.72 is: 15,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.07 : 34,338.11 = 10,420.72 : x
  2. Step 2: Convert to fraction form
    22,905.07/34,338.11 = 10,420.72/x
  3. Step 3: Cross multiply
    22,905.07x = 34,338.11 × 10,420.72
  4. Step 4: Simplify right side
    22,905.07x = 357,827,769.85
  5. Step 5: Solve for x
    x = 357,827,769.85/22,905.07
  6. Step 6: Final answer
    x = 15,622.21

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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.